




GAUGE THEORY & TOPOLOGY SEMINAR 
Hiro Tanaka (HARVARD UNIVERSITY) 
Lagrangian Cobordisms, Partially Wrapped Fukaya Categories, and a Functor Between Them 

September 13, 2013, 3:30  4:30 PM at Science Center 507 
TRIVIAL NOTIONS SEMINAR 
Tom Lovering (HARVARD UNIVERSITY) 
Lfunctions, Selmer Groups, and Modular Forms 

September 12, 2013, 1:00  2:00 PM at Science Center 507 
NUMBER THEORY SEMINAR 
Mark Kisin (HARVARD UNIVERSITY) 
Endomorphisms of abelian varieties and CM liftings 

September 11, 2013, 3:00  4:00 PM at Science Center 507 
SPECIAL SEMINAR 
Yi Tang Zhang (UNIVERSITY OF NEW HAMPSHIRE) 
Bounded gaps between primes 

May 13, 2013, 3:00pm at Science Center 507 
HARVARD, BRANDEIS, M.I.T., NORTHEASTERN COLLOQUIUM AT HARVARD 
Mladen Bestvina (THE UNIVERSITY OF UTAH) 
The geometry of Out(F_n) 

May 09, 2013, 4:30pm at Science Center Hall A 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
David Dumas (UNIVERSITY OF ILLINOIS AT CHICAGO) 
Convex polygons, complex polynomals, and hyperbolic affine spheres 

May 08, 2013, 4:00 PM at Sci Center 507 
HARVARD/MIT LOGIC SEMINAR 
James Freitag (UNIVERSITY OF CALIFORNIA, BERKELEY) 
Completeness for differential algebraic varieties 

May 06, 2013, 4:30pm at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
Daniel CristofaroGardiner (BERKELEY) 
Volume in SeibergWitten theory and the asymptotics of embedded contact homology (ECH) capacities 

May 06, 2013, 10:00am at Science Center 507 
PROBABILITY SEMINAR 
Dan Stroock (MASSACHUSETTS INSTITUTE OF TECHNOLOGY) 
Determinants of Green's Functions with Applications to Counting Spanning Trees and Other Things 

May 03, 2013, 1:30 PM at Sci Center 232 
PROBABILITY SEMINAR 
JeanFrancois Le Gall (UNIVERSITY OF PARIS SUD XI ORSAY) 
The harmonic measure of critical GaltonWatson trees 

May 02, 2013, 3:00  4:00 PM at Science Center 232 
SPECIAL SEMINAR 
Nils Carqueville (SIMONS CENTER FOR GEOMETRY & PHYSICS, STONY BROOK) 
Orbifold completion of kernel bicategories 

May 01, 2013, 4:15 PM at Science Center 232 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
Charles Smart (MASSACHUSETTS INSTITUTE OF TECHNOLOGY) 
The Abelian sandpile and Apollonian circle packings 

May 01, 2013, 4:00 PM at Sci Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
Bong Lian (BRANDEIS UNIVERSITY) 
CY bundles on a compact Kaehler manifold 

April 30, 2013, 4:15 PM at Science Center 507 
HARVARD/MIT LOGIC SEMINAR 
Haim Gaifman (COLUMBIA UNIVERSITY) 
Epistemic and Ontological Problems Concerning Mathematics 

April 30, 2013, 4:15 PM at Fong Auditorium (Boylston Hall 110) 
JOINT HARVARD/MIT PROBABILITY AFTERNOON: RANDOM MATRICES, RANDOM GEOMETRY 
Nikolai Makarov (CALIFORNIA INSTITUTE OF TECHNOLOGY) 
The support of the equilibrium measure in the random normal matrix model 

April 26, 2013, 3:30 PM at Science Center 309 
JOINT HARVARD/MIT PROBABILITY AFTERNOON: RANDOM MATRICES, RANDOM GEOMETRY 
JeanFranÃ§ois Le Gall (UNIVERSITY OF PARIS SUD XI ORSAY) 
The Brownian map: A universal model of random geometry 

April 26, 2013, 5:00 PM at Science Center 309 
GAUGE THEORY & TOPOLOGY SEMINAR 
Tye Lidman (UNIVERSITY OF TEXAS  AUSTIN) 
Monopole Floer homology and covering spaces 

April 26, 2013, 4:00  5:00 PM at Science Center 507 
JOINT HARVARD/MIT PROBABILITY AFTERNOON: RANDOM MATRICES, RANDOM GEOMETRY 
Mark Rudelson (MICHIGAN) 


April 26, 2013, 2:30 PM at Science Center 309 
PROBABILITY SEMINAR 
Nikolai Makarov (CAL TECH) 
Random normal matrices and Ward indentities 

April 25, 2013, 3:00 at Science Center 232 
NUMBER THEORY SEMINAR 
Yifeng Liu (MIT) 
On refined GanGrossPrasad conjecture for Bessel periods 

April 24, 2013, 3:00 pm at Science Center 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
Giulio Tiozzo (HARVARD UNIVERSITY) 
Entropy, dimension and combinatorial moduli for onedimensional dynamical systems 

April 24, 2013, 3:00PM at Science Center, Hall E 
APPLIED MECHANICS COLLOQUIA 
David Mumford (BROWN UNIVERSITY) 
Winston Chen Lecture: Mathematizing "Shape," from Durer to MRIs 

April 24, 2013, 4:00  5:00pm at Maxwell Dworkin G115 
SPECIAL SEMINAR 
Lydia Bieri (UNIVERSITY OF MICHIGAN) 
From Spacetime Geometry to Gravitational Waves 

April 24, 2013, 2:00 PM at Science Center 232 
DIFFERENTIAL GEOMETRY SEMINAR 
PoNing Chen (COLUMBIA UNIVERSITY) 
Minimizing quasilocal mass in general activity 

April 23, 2013, 4:15 PM at Science Center 507 
LOGIC SEMINAR 
Olivia Caramello (UNIVERSITY OF CAMBRIDGE) 
Fraisse's construction from a topostheoretic perspective 

April 22, 2013, 4:30 PM at Sci Center 507 
BASIC NOTIONS SEMINAR 
Richard Melrose (MIT) 
Fusion, LoopSpin and String structures 

April 22, 2013, 3:00 PM at Science Center 507 
GAUGE THEORY & TOPOLOGY 
Eli Grigsby (BOSTON COLLEGE, TUFTS UNIVERSITY, HARVARD UNIVERSITY, BRANDIES UNIVERSITY, AND TUFTS UNIVERSITY) 
Categorified invariants and the braid group 

April 19, 2013, 3:304:30 PM at Sci Center 507 
HARVARD/MIT LOGIC SEMINAR 
Johanna Franklin (UNIVERSITY OF CONNECTICUT) 
Strongly prompt sets and weak Demuth randomness 

April 18, 2013, 4:30 PM at Science Center 310 
PROBABILITY SEMINAR 
Mihai Stoiciu (WILLIAMS COLLEGE) 
Transition in the Microscopic Eigenvalue Distribution for Random and Deterministic Unitary Operators 

April 18, 2013, 3:00  4:00 PM at Science Center 232 
NUMBER THEORY SEMINAR 
Olivia Caramello (UNIVERSITY OF CAMBRIDGE) 
Topological Galois Theory 

April 17, 2013, 3:00 PM at Science Center 507 
SPECIAL INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Martin Bridgeman, BC/Moon Duchin, Tufts/Vaibhav Gadre, Harvard/Dmitry Kleinbock, Brandeis/Genevieve Walsh, Tufts () 
Pecha Kucha: Dynamics & Geometry, 20x20 

April 17, 2013, 4:00 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
Spiro Karigiannis (UNIVERSITY OF WATERLOO) 
A survey of results about G_2 conifolds 

April 16, 2013, 4:15 PM at Science Center 507 
HARVARD/MIT LOGIC SEMINAR 
Antonina Kolokolova (MEMORIAL UNIVERSITY OF NEWFOUNDLAND) 
How hard is proving hardness? A logic approach to barriers in complexity theory 

April 15, 2013, 4:30 PM at Science Center 507 
BASIC NOTIONS SEMINAR 
Albrecht Klemm (UNIVERSITY OF BONN) 
The refined BPS index from stable pair invariants 

April 15, 2013, 3:00 PM at Science Center 507 
SPECIAL SEMINAR 
Yang HuiHe (CITY U, LONDON/NANKAI U, CHINA/MERTON COLLEGE, OXFORD) 
Bipartite Graphs, Quivers and Gauge Theories 

April 11, 2013, 10:00 AM at Science Center 232 
THURSDAY SEMINAR 
Clark Barwick (MIT) 
The Unicity Theorem, I 

April 11, 2013, 3:00  5:00 PM at Science Center 507 
PROBABILITY SEMINAR 
Vadim Gorin (MIT) 
2D Structures of betarandom matrix ensembles and the Gaussian Free Field 

April 11, 2013, 3:00  4:00 PM at Science Center 232 
NUMBER THEORY SEMINAR 
Jennifer Balakrishnan (HARVARD UNIVERSITY) 
padic heights and integral points on hyperelliptic curves 

April 10, 2013, 3:00  4:00 PM at Science Center 507 
SPECIAL SEMINAR 
Jun Li (STANFORD UNIVERSITY) 
Moduli space of vector bundles over algebraic surfaces 

April 10, 2013, 1:00 PM at Science Center 411 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Danny Calegari (UNIVERSITY OF CHICAGO) 
Random groups contain surface subgroups 

April 10, 2013, 4:00  5:00 PM at Science Center 507 
SPECIAL SEMINAR 
Claude LeBrun (STONY BROOK) 
Edges, Orbifolds and SeibergWitten Theory 

April 10, 2013, 11:00 AM  12:00 PM at Science Center 507 
HARVARD/MIT ALGEBRAIC GEOMETRY SEMINAR 
Mike Roth (QUEEN'S UNIVERSITY) 
Roth's theorem for arbitrary varieties 

April 09, 2013, 3:00 PM at Science Center 507 
HARVARD/MIT LOGIC SEMINAR 
John Baldwin (UNIVERSITY OF ILLINOIS AT CHICAGO) 
Constructing atomic Borel structures in the continuum 

April 08, 2013, 4:30 PM at Science Center 507 
GAUGE THEORY & TOPOLOGY SEMINAR 
Chris Wendl (UNIVERSITY COLLEGE LONDON) 
Tight but nonfillable contact manifolds in all dimensions 

April 05, 2013, 3:00  4:00 PM at Science Center 507 
GAUGE THEORY & TOPOLOGY SEMINAR 
Matt Hedden (MICHIGAN STATE) 
The pillowcase and perturbations of traceless representations of knot groups 

April 05, 2013, 4:00  5:00 PM at Science Center 507 
PROBABILITY SEMINAR 
Jonathan Novak (MIT) 
An invitation to Weingarten calculus 

April 04, 2013, 3:00  4:00 PM at Science Center 232 
THURSDAY SEMINAR 
Gijs Heuts (HARVARD UNIVERSITY) 
Models for the theory of (âˆž, 1)operads 

April 04, 2013, 3:00  5:00 PM at Science Center 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Kasra Rafi (UNIVERSITY OF TORONTO) 
Geometry of Teichmuller Space 

April 03, 2013, 4:00  5:00 PM at Science Center 507 
NUMBER THEORY SEMINAR 
Shouwu Zhang (PRINCETON UNIVERSITY) 
The congruent number problem and special values of Lfunctions 

April 03, 2013, 3:00  4:00 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
William Meeks (UNIVERSITY OF MASSACHUSETTS AMHERST) 
The Geometry of isoperimetric domains of large volume in simply connected homogeneous 3manifolds 

April 02, 2013, 4:15 PM at Science Center 507 
BASIC NOTIONS SEMINAR 
Alexei Borodin (MASSACHUSETTS INSTITUTE OF TECHNOLOGY) 
Integrable stochastic particle systems and Macdonald processes 

April 01, 2013, 3:00 PM at Science Center 507 
GAUGE THEORY & TOPOLOGY SEMINAR 
ChungJun Tsai (HARVARD UNIVERSITY) 
Dirac spectral flow on contact 3manifolds 

March 29, 2013, 3:30  4:30 PM at Science Center 507 
THURSDAY SEMINAR 
Dominic Verity (MACQUARIE UNIVERSITY) 
A Conspectus of Complicial Sets, continued 

March 28, 2013, 3:00  5:00 PM at Science Center 507 
NUMBER THEORY SEMINAR 
Jared Weinstein (BOSTON UNIVERSITY) 
pdivisible groups over O_C 

March 27, 2013, 3:00  4:00 PM at Science Center 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Alex Wright (UNIVERSITY OF CHICAGO) 
SL(2,R)orbit closures of translation surfaces 

March 27, 2013, 4:00  5:00 PM at Science Center 507 
PROBABILITY SEMINAR 
Noureddine El Karoui (UC BERKELEY  STATISTICS) 
Some connections between random matrix theory and highdimensional statistics 

March 26, 2013, 3:00  4:00 PM at Science Center 232 
DIFFERENTIAL GEOMETRY SEMINAR 
An Huang (HARVARD UNIVERSITY) 
The tautological system 

March 26, 2013, 4:15 PM at Science Center 507 
HARVARD/MIT ALGEBRAIC GEOMETRY SEMINAR 
Noah Giansiracusa (UC BERKELEY) 
Tropical Scheme Theory 

March 26, 2013, 3:00 PM at Science Center 507 
BASIC NOTIONS SEMINAR 
Mark Kisin (HARVARD UNIVERSITY) 
The Grothendieck pcurvature conjecture 

March 25, 2013, 3:00 PM at Science Center 507 
HARVARD/MIT LOGIC SEMINAR 
Nate Ackerman (HARVARD UNIVERSITY) 
Transferring modeltheoretic results about Lâˆž,Ï‰ to a Grothendieck topos 

March 25, 2013, 4:30 PM at Science Center 507 
SPECIAL SEMINAR 
Chao Chen (RUTGERS UNIVERSITY  COMPUTER SCIENCE) 
Connecting Homology and Quantification  Homology Localization and Persistent Homology 

March 25, 2013, 4:00  5:00 PM at Science Center 530 
THURSDAY SEMINAR 
Dominic Verity (MACQUARIE UNIVERSITY) 
A Conspectus of Complicial Sets 

March 21, 2013, 3:00  5:00 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
MuTao Wang (COLUMBIA UNIVERSITY) 
Surfaces in spacetime and quasilocal mass 

March 19, 2013, 4:15 PM at Science Center 507 
SPECIAL SEMINAR 
John Loftin (RUTGERS UNIVERSITY) 
Cubic Differentials and Limits of RP^2 Structures 

March 18, 2013, 2:00 PM at Science Center 507 
PROBABILITY SEMINAR 
Benoit Collins (UNIVERSITY OF OTTAWA) 
Norm convergence for random matrices and applications 

March 14, 2013, 3:00 PM at Science Center 232 
HARVARD, BRANDEIS, MIT, NORTHEASTERN JOINT COLLOQUIUM AT HARVARD 
Raman Parimala (EMORY UNIVERSITY) 
Periodindex questions for the Brauer groups 

March 14, 2013, 4:30 PM at Science Center, Hall A 
NUMBER THEORY SEMINAR 
Jochen Gartner (MCGILL UNIVERSITY) 
Massey products in the cohomology of prop extensions 

March 13, 2013, 3:00  4:00 PM at Science Center 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Eric Bedford (INDIANA UNIVERSITY) 
Automorphisms of complex manifolds with positive entropy 

March 13, 2013, 4:00  5:00 PM at Science Center 507 
HARVARD/MIT ALGEBRAIC GEOMETRY SEMINAR 
Brian Lehman (RICE UNIVERSITY) 
Big cycles and volume functions 

March 12, 2013, 3:00 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
Thomas Lam (UNIVERSITY OF MICHIGAN) 
The projected Richardson stratification of a partial flag variety 

March 12, 2013, 4:15 PM at Science Center 507 
HARVARD/MIT LOGIC SEMINAR 
Rehana Patel and Nate Ackerman (OLIN COLLEGE AND HARVARD UNIVERSITY) 
A Random Walk Through Some First Order 01 Laws and Computability of 01 Laws 

March 11, 2013, 4:30 PM at Sci Center 507 
THURSDAY SEMINAR 
Jeremy Hahn (MASSACHUSETTS INSTITUTE OF TECHNOLOGY) 
From nfold Segal spaces to nfold quasicategories 

March 07, 2013, 3:00  5:00 PM at Sci Center 507 
PROBABILITY SEMINAR 
Ivan Corwin (MIT) 
From duality to determinants for ASEP 

March 07, 2013, 3:00  4:00 PM at Science Center 232 
TRIVIAL NOTIONS SEMINAR 
Francesco Cavazzani (HARVARD UNIVERSITY) 
From 3264 conics to wonderful compactifications 

March 07, 2013, 1:00 PM at Science Center 310 
NUMBER THEORY SEMINAR 
David Zywina (INSTITUTE FOR ADVANCED STUDY) 
Big Monodromy and the Inverse Galois Problem 

March 06, 2013, 3:00  4:00 PM at Science Center 507 
SPECIAL INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Benedict Gross, Oliver Knill, Sarah Koch, Barry Mazur, Curtis McMullen and Emily Riehl (HARVARD UNIVERSITY) 
PechaKucha: Mathematics, 20x20 

March 06, 2013, 4:00 PM at Science Center Hall C 
DIFFERENTIAL GEOMETRY SEMINAR 
Matthias Keller (HEBREW UNIVERSITY) 
Intrinsic metrics for Laplacians on graphs 

March 05, 2013, 4:15 PM at Science Center 507 
SPECIAL SEMINAR 
Wolfgang Tichy (FLORIDA ATLANTIC UNIVERSITY) 
Constructing initial data for binary neutron stars with spins 

March 05, 2013, 2:00 PM at Science Center 232 
BASIC NOTIONS SEMINAR 
Dennis Gaitsgory (HARVARD UNIVERSITY) 
Induction of representations and weird Frobenius reciprocity 

March 04, 2013, 3:00 PM at Science Center 507 
HARVARD/MIT LOGIC SEMINAR 
Robert Lubarsky (FLORIDA ATLANTIC UNIVERSITY) 
FITTMs, Sigma_3 Determinacy, and nested Sigma_2 Reflection 

March 04, 2013, 4:30 PM at Science Center 507 
TRIVIAL NOTIONS SEMINAR 
Peter Smillie (HARVARD UNIVERSITY) 
Geometry of Diffeomorphism Groups 

February 28, 2013, 1:00 PM at Science Center 310 
THURSDAY SEMINAR 
Gijs Heuts (HARVARD UNIVERSITY) 
ToÃ«n's axiomatization of the homotopy theory of (infinity,1)categories 

February 28, 2013, 3:00  5:00 PM at Science Center 507 
PROBABILITY SEMINAR 
Nalini Anantharaman (UNIVERSITY PARIS SUD / IAS) 
Quantum Ergodicity on Large Regular Graphs 

February 28, 2013, 3:00 PM at Science Center 232 
NUMBER THEORY SEMINAR 
Sug Woo Shin (MIT) 
Nonemptiness of Newton strata 

February 27, 2013, 3:00  4:00 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
Yi Zhang (FUDAN UNIVERSITY) 
Smooth toroidal compactifications of Siegel variety from the viewpoint of KaehlerEinstein metrics 

February 26, 2013, 4:15 PM at Science Center 507 
BASIC NOTIONS SEMINAR 
Igor Rodnianski (MIT) 
Nonlinear scattering for black holes 

February 25, 2013, 3:00 PM at Science Center 507 
PROBABILITY SEMINAR 
Raymond Yeung (THE CHINESE UNIVERSITY OF HONG KONG) 
Refinement of Two Fundamental Tools in Information Theory 

February 22, 2013, 2:00 PM at Science Center 232 
PROBABILITY SEMINAR 
Benedek Valko (UNIVERSITY OF WISCONSIN) 
Diffusivity of lattice gases 

February 21, 2013, 3:00  4:00 PM at Science Center 232 
HARVARD, BRANDEIS, MIT, NORTHEASTERN COLLOQUIUM AT HARVARD 
Alex Kontorovich (YALE UNIVERSITY) 
Diophantine problems in thin orbits 

February 21, 2013, 4:30 PM at Science Center, Hall A 
THURSDAY SEMINAR 
Clark Barwick (MIT) 
Models of (âˆž, 1)categories: a bestiary 

February 21, 2013, 3  5PM at Science Center 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Jayadev Athreya (UNIVERSITY OF ILLINOIS AT URBANACHAMPAIGN) 
Gap distributions and homogeneous dynamics 

February 20, 2013, 4:00 PM at Science Center 507 
SPECIAL SEMINAR 
Can Kozcas (SISSA) 
Extending the Refined Topological Vertex and its Connection to the Refined ChernSimons Theory 

February 20, 2013, 3:00 PM at Science Center 232 
NUMBER THEORY SEMINAR 
Jack Thorne (HARVARD UNIVERSITY) 
Symmetric power functoriality for GL(2) 

February 20, 2013, 3:00  4:00 PM at Science Center 507 
HARVARD/MIT ALGEBRAIC GEOMETRY SEMINAR 
Bernd Sturmfels (UC BERKELEY) 
A Hilbert Scheme in Computer Vision 

February 19, 2013, 3:00 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
Franz Schuster (VIENNA UNIVERSITY OF TECHNOLOGY) 
Affine vs. Euclidean Isoperimetric Inequalities 

February 19, 2013, 4:15 PM at Science Center 507 
HARVARD/MIT LOGIC SEMINAR 
Gerald Sacks (HARVARD UNIVERSITY) 
Extensions of LevySchoenfield Absoluteness 

February 19, 2013, 5:00 PM at Science Center 112 
TRIVIAL NOTIONS SEMINAR 
Gijs Heuts (HARVARD UNIVERSITY) 
Quillen Homology 

February 14, 2013, 1:00  2:00 PM at Science Center 310 
PROBABILITY SEMINAR 
Michael Brenner (HARVARD UNIVERSITY SEAS) 
Signal identification from sample covariance matrices with correlated noise 

February 14, 2013, 3:00 PM at Science Center 232 
HARVARD/MIT LOGIC SEMINAR 
Alice Medvedev (UC BERKELEY) 
Algebraic Dynamics, Number Theory and Model Theory 

February 13, 2013, 4:30 PM at Science Center 232 
NUMBER THEORY SEMINAR 
Brandon Levin (STANFORD UNIVERSITY) 
Flat deformations with additional structure 

February 13, 2013, 3:00  4:00 PM at Science Center 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Laurent Bartholdi (UNIVERSITY OF GOTTINGEN) 
Computing with branched coverings 

February 13, 2013, 4:00 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
Babak Haghighat (HARVARD UNIVERSITY PHYSICS) 
Conifold transitions in CalabiYau fourfolds and 3D gauge theories 

February 12, 2013, 4:15 PM at Science Center 507 
BASIC NOTIONS SEMINAR 
Mboyo Esole (HARVARD UNIVERSITY) 
The Geometry of Elliptic Fibrations, a String Theory Perspective 

February 11, 2013, 3:00 PM at Science Center 507 
TRIVIAL NOTIONS SEMINAR 
Erick Knight (HARVARD UNIVERSITY) 
Rationality of del Pezzo Surfaces 

February 07, 2013, 1:00  2:00 PM at Science Center 310 
PROBABILITY SEMINAR 
Jason Miller (MIT) 
Imaginary Geometry and the Gaussian Free Field 

February 07, 2013, 3:00 PM at Science Center 232 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Diana Davis (BROWN UNIVERSITY) 
Cutting sequences on BouwMoeller surfaces 

February 06, 2013, 4:00 PM at Science Center 507 
NUMBER THEORY SEMINAR 
Bjorn Poonen (MIT) 
Most odd degree hyperelliptic curves have only one rational point 

February 06, 2013, 3:00  4:00 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
Gao DaPeng *NEW SPEAKER* (SIMONS CENTER FOR GEOMETRY & PHYSICS, STONY BROOK UNIVERSITY) 
Asymptotic spectrum of winding states in large volume CalabiYau sigma models 

February 05, 2013, *NEW TIME* 1:30 PM at *NEW LOCATION* Science Center 232 
BASIC NOTIONS SEMINAR 
Dan Stroock (MIT) 
Randomness and Regularity 

February 04, 2013, 3:00 PM at Science Center 507 
GAUGE THEORY & TOPOLOGY SEMINAR 
R. Inanc Baykur (MAX PLANCK INSTITUTE) 
Topological Complexity of Symplectic 4manifolds and Stein fillings 

February 01, 2013, 3:30 PM at Science Center 507 
TRIVIAL NOTIONS SEMINAR 
Eric Riedl (HARVARD UNIVERSITY) 
Brauer Groups 

January 31, 2013, 1:00 PM at SC 310 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Oleg Ivrii (HARVARD UNIVERSITY) 
Completing the Cardioid 

January 30, 2013, 4:00  5:00 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
Si Li (BOSTON UNIVERSITY) 
The Quantum Theory of LandauGinzberg Bmodel 

January 29, 2013, 4:15 PM at Science Center 507 
PROBABILITY SEMINAR 
Gaetan Borot (UNIVERSITY OF GENEVA) 
Allorder asymptotic of beta ensembles in the multicut regime 

January 25, 2013, 2:00 PM at Science Center 232 
NUMBER THEORY SEMINAR 
Benson Farb (UNIVERSITY OF CHICAGO) 
The cohomology of SL(n,Z) and its congruence subgroups 

December 12, 2012, 3:00  4:00 PM at Science Center 507 
HARVARD/MIT ALGEBRAIC GEOMETRY SEMINAR 
Ivan Petrakiev () 
On the homogeneous interpolation problem 

December 11, 2012, 3:00 PM at Science Center 507 
GAUGE THEORY & TOPOLOGY SEMINAR 
John Baldwin (BOSTON COLLEGE) 
A bordered monopole Floer theory 

December 07, 2012, 3:30 PM at Science Center 507 
TRIVIAL NOTIONS SEMINAR 
PeiYu (HARVARD UNIVERSITY) 
Local new forms for GL(n) 

December 06, 2012, 1:30 PM at Science Center 507 
NUMBER THEORY SEMINAR 
Tasho Kaletha (INSTITUTE FOR ADVANCED STUDY) 
Epipelagic Lpackets and rectifying characters 

December 05, 2012, 3:00  4:00 PM at Science Center 507 
HARVARD/MIT LOGIC SEMINAR 
Max Weiss (UNIVERSITY OF BRITISH COLUMBIA/HARVARD UNIVERSITY) 
The Logic of the Tractatus 

December 05, 2012, 4:00 PM at Science Center, Rm B10 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
John Hamal Hubbard (UNIVERSITé DE PROVENCE/CORNELL UNIVERSITY) 
On Hubbard trees, etc. 

December 05, 2012, 4:00  5:00 PM at Science Center 507 
HARVARD/MIT ALGEBRAIC GEOMETRY SEMINAR 
Giulia Sacca (PRINCETON UNIVERSITY) 
Abelian fibrations from Enriques surfaces 

December 04, 2012, 3:00 PM at Science Center 507 
BASIC NOTIONS SEMINAR 
Cumrun Vafa (HARVARD UNIVERSITY) 
Scattering CalabiYau Manifolds 

December 03, 2012, 3:00 PM at Science Center 507 
PROBABILITY SEMINAR 
Tanya Shcherbina (INSTITUTE FOR ADVANCED STUDY) 
Universality of the local regime of characteristic polynomials of the 1D Gaussian band matrices 

November 29, 2012, 3:00 PM at Science Center 232 
TRIVIAL NOTIONS SEMINAR 
Ryosuke Takahashi (HARVARD UNIVERSITY) 
Maximum Principle for Second Order Fully Nonlinear Elliptic Equations 

November 29, 2012, 1:30 PM at Science Center 507 
NUMBER THEORY SEMINAR 
Stefan Patrikis (PRINCETON UNIVERSITY) 
Variations on a theorem of Tate 

November 28, 2012, 3:00  4:00 PM at Science Center 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Yutaka Ishii (KYUSHU UNIVERSITY) 
Trinitas for the Henon Map 

November 27, 2012, 4:00  5:00 PM at Science Center 530 
HARVARD/MIT ALGEBRAIC GEOMETRY SEMINAR 
Koushik Pal (UNIVERSITY OF MARYLAND, COLLEGE PARK) 
Unstable theories with an automorphism 

November 27, 2012, 4:00 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
Yefeng Shen (UNIVERSITY OF MICHIGAN) 
GromovWitten theory and cyclevalued modular forms 

November 27, 2012, 1:30  3:00 PM at Science Center 507 
BASIC NOTIONS SEMINAR 
Sukhada Fadnavis (HARVARD UNIVERSITY) 
A Generalization of the Birthday Problem 

November 26, 2012, 3:00 PM at Science Center 507 
HARVARD/MIT ALGEBRAIC GEOMETRY SEMINAR 
Yaim Cooper (PRINCETON) 
Stable quotients and stable maps: A comparison 

November 20, 2012, 3:00  4:00 PM at Science Center 507 
HARVARD/MIT ALGEBRAIC GEOMETRY SEMINAR 
Ngo Viet Trung (HANOI) 
CohenMacaulayness of monomial ideals 

November 20, 2012, 4:30  5:30 PM at Science Center 507 
PROBABILITY SEMINAR 
Alice Guionnet (MIT) 
About Heavy Tailed Random Matrices 

November 20, 2012, 3:00 PM at Science Center 232 
BASIC NOTIONS SEMINAR 
Emily Riehl (HARVARD UNIVERSITY) 
Weighted limits and colimits 

November 19, 2012, 3:00 PM at Science Center 507 
TRIVIAL NOTIONS SEMINAR 
Nathan Pflueger (HARVARD UNIVERSITY) 
Rational Normal Scrolls 

November 15, 2012, 1:30  2:30 PM at Science Center 507 
HARVARD, BRANDEIS, MIT, NORTHEASTERN COLLOQUIUM AT HARVARD 
Tom Church (STANFORD UNIVERSITY) 
Representation theory and homological stability 

November 15, 2012, 4:30 PM at Science Center Hall A 
NUMBER THEORY SEMINAR 
Ngo Bao Chau (UNIVERSITY OF CHICAGO) 
Geometric interpretation of automorphic Lfunctions 

November 14, 2012, 3:00  4:00 PM at Science Center 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Stergios Antonakoudis (HARVARD UNIVERSITY) 
On the nonexistence of superTeichmueller disks 

November 14, 2012, 4:00 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
Frank Bauer (HARVARD UNIVERSITY) 
On the spectrum of Laplace operators on graphs 

November 13, 2012, 4:15 PM at Science Center 507 
PROBABILITY SEMINAR 
Craig A. Tracy (UC DAVIS) 
Bethe Ansatz Methods in Stochastic Integrable Models 

November 13, 2012, 1:00 PM at Science Center 232 
HARVARD/MIT LOGIC SEMINAR 
Rod Downey (VICTORIA UNIVERSITY WELLINGTON) 
The computability theory of the Finite Intersection Principle 

November 09, 2012, 3:30 PM at Science Center 411 
GAUGE THEORY & TOPOLOGY SEMINAR 
Rosa SenaDias (INSTITUTO SUPERIOR TECNICO) 
Noncompact scalarflat K\"ahler toric metrics and their energy 

November 09, 2012, 3:30  4:30 PM at Science Center 507 
TRIVIAL NOTIONS SEMINAR 
Jeffrey Kuan (HARVARD UNIVERSITY) 
The representation theory and combinatorics behind random partitions 

November 08, 2012, 1:30 PM at Science Center 507 
PROBABILITY SEMINAR 
Elizabeth Meckes (CASE WESTERN RESERVE UNIVERSITY) 
The spectra of powers of random unitary matrices 

November 08, 2012, 3:00 PM at Science Center 232 
NUMBER THEORY SEMINAR 
Robert Guralnick (UNIVERSITY OF SOUTHERN CALIFORNIA) 
E8(p) is a Galois group over Q 

November 07, 2012, 3:00  4:00 PM at Science Center 506 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Matt Bainbridge (INDIANA UNIVERSITY) 
Effective Veech dichotomy 

November 07, 2012, 4:00  5:00 PM at Science Center 507 
PROBABILITY AND ANALYSIS SEMINAR 
Hao Jia (UNIVERSITY OF MINNESOTA) 
On scaleinvariant solutions to Navier Stokes equation 

November 06, 2012, 1:30 PM at Science Center 232 
DIFFERENTIAL GEOMETRY SEMINAR 
Eric Zaslow (NORTHWESTERN UNIVERSITY) 
Skeleta for Affine Hypersurfaces 

November 06, 2012, 4:15 PM at Science Center 507 
HARVARD/MIT ALGEBRAIC GEOMETRY SEMINAR 
John Lesieutre (MIT) 
A divisor with nonclosed restricted base locus 

November 06, 2012, 3:00 PM at Science Center 507 
BASIC NOTIONS SEMINAR 
Gabor Lippner (HARVARD UNIVERSITY) 
Invariant perfect matchings in Cayley graphs 

November 05, 2012, 3:00 PM at Science Center 507 
HARVARD/MIT LOGIC SEMINAR 
Maryanthe Malliaris (UNIVERSITY OF CHICAGO) 
Cofinality spectrum problems in model theory, set theory and general topology 

November 05, 2012, 4:00 PM at Science Center 507 
GAUGE THEORY & TOPOLOGY SEMINAR 
Joshua Batson (MIT) 
A link splitting spectral sequence in Khovanov Homology 

November 02, 2012, 3:30  4:40 PM at Science Center 507 
TRIVIAL NOTIONS SEMINAR 
Oleg Ivrii (HARVARD UNIVERSITY) 
Moduli of Curves 

November 01, 2012, 1:30  2:30 PM at Science Center 507 
SPECIAL SEMINAR 
Fan Chung Graham (UC SAN DIEGO) 
Can you hear the shape of a network? New directions in spectral graph theory 

November 01, 2012, 1:30 PM at Science Center 232 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Andres Sambarino (UNIVERSITE PARISSUD, ORSAY) 
Convexity and counting 

October 31, 2012, 4:00  5:00 PM at Science Center 507 
SPECIAL SEMINAR 
Dan Mangoubi (HEBREW UNIVERSITY) 
Convexity properties of harmonic functions on Riemannian manifolds 

October 31, 2012, 3:00 PM at Science Center 232 
**POSTPONED** NUMBER THEORY SEMINAR 
Tasho Kaletha (INSTITUTE FOR ADVANCED STUDY) 
Epipelagic Lpackets and rectifying characters 

October 31, 2012, at 
DIFFERENTIAL GEOMETRY SEMINAR 
YuShen Lin (HARVARD UNIVERSITY) 
Discs Counting on Elliptic K3 Surfaces and WallCrossing 

October 30, 2012, 4:15 PM at Science Center 507 
SPECIAL PROBABILITY SEMINAR 
Jürg Fröhlich (ETH ZÜRICH) 
What is it that is confusing about Quantum Mechanics 

October 30, 2012, 1:30 PM at Science Center 507 
BASIC NOTIONS SEMINAR 
Fan Chung Graham (UC SAN DIEGO) 
Can you hear the shape of a network?  New directions in spectral graph theory 

October 29, 2012, 3:00 PM at Science Center 507 
PROBABILITY SEMINAR 
Louis Pierre Arguin (MONTREAL UNIVERSITY) 
PoissonDirichlet statistics for the extremes of logcorrelated Gaussian fields 

October 26, 2012, 1:30 PM at Science Center 232 
HARVARD, BRANDEIS, MIT, NORTHEASTERN COLLOQUIUM AT HARVARD 
Laura DeMarco (UNIVERSITY OF ILLINOIS, CHICAGO) 
Special Curves and postcriticallyfinite polynominals 

October 25, 2012, 430 PM at Science Center Hall A 
THURSDAY SEMINAR 
Clark Barwick (MIT) 
Deligne cohomology (ctd) 

October 25, 2012, 300  430 PM at Science Center 507 
TRIVIAL NOTIONS SEMINAR 
Konstantin Matveev (HARVARD UNIVERSITY) 
Limits of Random Surfaces 

October 25, 2012, 130 PM at Science Center 507 
NUMBER THEORY SEMINAR 
Abhinav Kumar (MIT) 
Abelian surfaces with everywhere good reduction 

October 24, 2012, 300  400 PM at Science Center 507 
HARVARD/MIT ALGEBRAIC GEOMETRY SEMINAR 
Nathan Ilten (UC BERKELEY) 
Mutations of Laurent polynomials and flat families with toric fibers 

October 23, 2012, 300 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
YuJong Tzeng (HARVARD UNIVERSITY) 
Enumeration of singular curves with tangency conditions 

October 23, 2012, 415 PM at Science Center 507 
BASIC NOTIONS SEMINAR 
Shlomo Sternberg (HARVARD UNIVERSITY) 
Recent incarnations of the Cartan three form 

October 22, 2012, 300  400 PM at Science Center 507 
SPECIAL PROBABILITY SEMINAR 
Claudio Landim (IMPA) 
Action functional and quasipotential for the Burgers equation in a bounded interval 

October 19, 2012, 130 PM at Science Center 232 
GAUGE THEORY & TOPOLOGY SEMINAR 
Michael Hutchings (UC BERKELEY) 
Existence of two Reeb orbits 

October 19, 2012, 330  430 PM at Science Center 507 
TRIVIAL NOTIONS SEMINAR 
Ben Stetler (HARVARD UNIVERSITY) 
Information Theory and the Channel Coding Theorem 

October 18, 2012, 130 PM at Science Center 507 
THURSDAY SEMINAR 
Clark Barwick (MIT) 
Deligne cohomology 

October 18, 2012, 300  500 PM at Science Center 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
John Smillie (CORNELL UNIVERSITY) 
Translation surfaces and Teichmueller dynamics 

October 17, 2012, 400  500 PM at Science Center 507 
HARVARD/MIT LOGIC SEMINAR 
Peter Cholak (UNIVERSITY OF NOTRE DAME) 
The computably enumerable sets the tardy sets, the Dmaximal sets and the low sets 

October 17, 2012, 400 PM at Science Center Hall E 
NUMBER THEORY SEMINAR 
Dennis Gaitsgory (HARVARD UNIVERSITY) 
Arthur parameters for the Langlands correspondence in the geometric setting 

October 17, 2012, 300  400 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
Emanuel Scheidegger (UNIVERSITY OF FREIBURG) 
Topological strings, fibrations and modular forms 

October 16, 2012, 130 PM at Science Center 507 
PROBABILITY SEMINAR 
Ben Stetler (HARVARD UNIVERSITY) 
Lifshitz tails for spectra of ErdosRenyi random graphs 

October 12, 2012, 130 PM at Science Center 232 
GAUGE THEORY & TOPOLOGY SEMINAR 
Jae Choon Cha (POHANG UNIVERSITY OF SCIENCE & TECHNOLOGY) 
Amenable L2signatures and cobordism of knots and 3manifolds 

October 12, 2012, 330  430 PM at Science Center 507 
THURSDAY SEMINAR 
Kristen Wickelgren (HARVARD UNIVERSITY) 
Esnault and Wittenberg's work on Ocycles and anabelian geometry 

October 11, 2012, 300  500 PM at Science Center 507 
TRIVIAL NOTIONS SEMINAR 
Chao Li (HARVARD UNIVERSITY) 
Mumford Curves 

October 11, 2012, 130 PM at Science Center 507 
NUMBER THEORY SEMINAR 
David Hansen (BOSTON COLLEGE) 
Eigenvarieties for reductive groups 

October 10, 2012, 300 PM at Science Center 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Kevin Pilgrim (INDIANA UNIVERSITY) 
Pullback invariants of critically finite rational maps 

October 10, 2012, 400  500 PM at Science Center 507 
HARVARD/MIT ALGEBRAIC GEOMETRY SEMINAR 
Shoji Yokura (KAGOSHIMA UNIVERSITY) 
Motivic Hirzebruch class and its DonaldsonThomas type analogue 

October 09, 2012, 300 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
Tobias Ekholm (UPPSALA UNIVERSITY) 
Exact Lagrangian immersions with a single double point 

October 09, 2012, 415 PM at Science Center 507 
SPECIAL SEMINAR 
Sergey Grigorian (SUNY STONY BROOK) 
Shorttime behaviour of a modified Laplacian coflow of G2 structures 

October 09, 2012, 130 PM at Science Center 507 
GAUGE THEORY & TOPOLOGY SEMINAR 
Andy Wand (HARVARD UNIVERSITY) 
Tightness and open book decompostions 

October 05, 2012, 330  430 PM at Science Center 507 
TRIVIAL NOTIONS SEMINAR 
Jie Zhou (HARVARD UNIVERSITY) 
Monodromy, Moduli Spaces and Mirror Manifolds 

October 04, 2012, 130 PM at Science Center 507 
THURSDAY SEMINAR 
Aravind Asok (HARVARD UNIVERSITY) 
Homotopy theory of punctured affine spaces 

October 04, 2012, 3  5 PM at Sci Center 507 
NUMBER THEORY SEMINAR 
Brian Conrad (STANFORD UNIVERSITY) 
Minimal Pseudoreductive Groups 

October 03, 2012, 300  400 PM at Science Center 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Anders Karlsson (UNIVERSITY OF GENEVA) 
Two extensions of Thurston's spectral theorem of surface diffeomorphisms 

October 03, 2012, 400  500 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
Alexander Grigorian (BIELEFELD UNIVERSITY) 
Homologies of graphs 

October 02, 2012, 415 PM at Science Center 507 
TRIVIAL NOTIONS SEMINAR 
ChengChiang Tsai (HARVARD UNIVERSITY) 
Localization to 27 Lines on the Cubic Surface 

September 27, 2012, 130 PM at Science Center 507 
NUMBER THEORY SEMINAR 
Benjamin Howard (BOSTON COLLEGE) 
GrossZagier theorems for higher weight modular forms 

September 26, 2012, 300  400 PM at Science Center 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Hiroshige Shiga (TOKYO INSTITUTE OF TECHNOLOGY) 
Holomorphic families of Riemann surfaces and their degenerations 

September 26, 2012, 400  500 PM at Science Center 507 
HARVARD/MIT ALGEBRAIC GEOMETRY SEMINAR 
Sam Payne (YALE UNIVERSITY) 
Tropicalization of the moduli space of curves 

September 25, 2012, 300 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
SiuCheong Lau (HARVARD UNIVERSITY) 
Open Mirror Symmetry by using SYZ 

September 25, 2012, 415 PM at Science Center 507 
BASIC NOTION SEMINAR 
SiuCheong Lau (HARVARD UNIVERSITY) 
Mirror symmetry and Fourier transform 

September 24, 2012, 3 PM at Science Center 507 
GAUGE THEORY & TOPOLOGY SEMINAR 
Ke Zhu (HARVARD UNIVERSITY) 
Thin instantons in G2 manifolds and SeibergWitten invariants 

September 21, 2012, 330  430 PM at Science Center 507 
THURSDAY SEMINAR 
Mike Hopkins (HARVARD UNIVERSITY) 
Totaro's work on algebraic cycles and complex cobordism 

September 20, 2012, 3  5 PM at Science Center 507 
TRIVIAL NOTIONS SEMINAR 
Omar Antolin Camarena (HARVARD UNIVERSITY) 
No Wandering Domains 

September 20, 2012, 130 PM at Science Center 507 
NUMBER THEORY SEMINAR 
Jacob Tsimerman (HARVARD UNIVERSITY) 
Ominimality and Arithmetic Applications 

September 19, 2012, 300  400 PM at Science Center 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Howard Masur (UNIVERSITY OF CHICAGO) 
Winning sets of foliations for Schmidt games 

September 19, 2012, 400  500 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
Andreas Grotz (HARVARD UNIVERSITY) 
Geometric Structures in the Fermionic Operator Approach 

September 18, 2012, 415 PM at Science Center 507 
BASIC NOTIONS SEMINAR 
ShingTung Yau (HARVARD UNIVERSITY) 
Geometry of singular Einstein space 

September 17, 2012, 300 PM at Science Center 507 
TRIVIAL NOTIONS SEMINAR 
Ali Daemi (HARVARD UNIVERSITY) 
Infinite Dimensional Morse Theory for Low Dimensional Manifolds 

September 13, 2012, 130  230 PM at Science Center 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Giulio Tiozzo (HARVARD UNIVERSITY) 
Geodesic ray tracking for random walks 

September 12, 2012, 400  500 PM at Science Center 507 
DIFFERENTIAL GEOMETRY SEMINAR 
Adam Jacob (HARVARD UNIVERSITY) 
The Yang Mills Flow and the AtiyahBott Formula on Kahler Manifolds 

September 11, 2012, 400  530 PM at Science Center 507 
HARVARD MIT ALGEBRAIC GEOMETRY SEMINAR 
Curt McMullen (HARVARD UNIVERSITY) 
Moduli spaces of isoperiodic forms on Riemann surfaces 

September 11, 2012, 300  400 PM at Science Center 507 
PARTIAL DIFFERENTIAL EQUATION SEMINAR 
Zhen Lei (HARVARD UNIVERSITY) 
Introduction to NavierStokes equations 

September 11, 2012, 130 PM at Science Center 232 
PROBABILITY SEMINAR 
Alan Hammond () 
The Multiline Airy Process and it's BrownianGibb Property 

September 07, 2012, 130 PM at Science Center 232 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
Ronen Mukamel (STANFORD UNIVERSITY) 
Fundamental domains and generators for lattice Veech groups 

September 05, 2012, 4 PM at Science Center 507 
SUMMER TOPOLOGY SEMINAR 
Geoffroy Horel () 
Topological Calculus 

August 16, 2012, 2 PM at Science Center 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
X. Buff / C. McMullen (UNIVERSITY OF TOULOUSE & ICERM / HARVARD UNIVERSITY) 
Antipodepreserving cubic rational maps & Cascades in the dynamics of surface foliations 

June 6, 2012, 300 p.m. at Science Center, room 530 
PROBABILITY SEMINAR 
Omer Angel (UNIVERSITY OF BRITISH COLUMBIA) 
Linearly reinforced random walks 

May 11, 2012, 130PM at Science Center 232 
NUMBER THEORY SEMINAR 
Ellen Eischen () 
An Eisenstein measure for unitary groups 

May 9, 2012, 300 pm at Science Center, room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
Milena Hering (UCONN STORR) 


May 8, 2012, 300 pm at MIT (2147) 
GAUGE THEORY & TOPOLOGY 
Cagatay Kutluhan (HARVARD UNIVERSITY) 
Holonomy filtration and knots 

May 4, 2012, 330 pm at Science Center, room 507 
BRANDEIS  HARVARDMITNORTHEARSTERN COLLOQUIUM AT HARVARD 
Peter May (UNIVERSITY OF CHICAGO) 
What is equivariant cohomology and what is it good for? 

May 3, 2012, 430 pm ( Tea to start at 400 ) at Talk at 317 Goldsmith Hall, Tea at 300 Goldsmith Hall 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Amie Wilkinson (UNIVERSITY OF CHICAGO) 
Conservative diffeomorphisms from a C^1 generic perspective 

May 2, 2012, 400 pm at Science Center, room 507 
NUMBER THEORY SEMINAR 
Wei Zhang (COLUMBIA UNIVERSITY) 
Local character expansion and Lvalues 

May 2, 2012, 300 p.m. at Science Center, room 507 
RANDOM MATRIX & PROBABILITY SEMINAR 
Bertrand Duplantier (INSTITUTE FOR THEORETICAL PHYSICS, SACLAY (FRANCE)) 
SLE, KPZ and Liouville Quantum Gravity 

May 1, 2012, 300 pm at Science Center, room 232 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
John Ottem (CAMBRIDGE) 
Ample subvarieties and qample divisors 

May 1, 2012, 300 p.m. at Harvard University Science Center, room 507 
GAUGE THEORY & TOPOLOGY 
Tatyana Kobylyatskaya (HARVARD UNIVERSITY) 
Symplectic embeddings of rational homology balls 

April 27, 2012, 330 pm at Science Center, room 507 
RANDOM MATRIX SEMINAR 
R. Nadakuditi (( MICHIGAN )) 
Phase transitions in spiked random matrices 

April 26, 2012, 300 pm at Science Center, room 232 
BRANDEISHARVARDMITNORTHEASTERN JOINT COLLOQUIUM 
Balazs Szegedy (UNIVERSITY OF TORONTO, INSTITUTE FOR ADVANCED STUDY) 
Higher order Fourier analysis 

April 26, 2012, 430pm at Science Center, Hall A 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Samuel Lelievre (UNIVERSITE' PARISSUD) 
Flat surfaces with no convex presentation (joint work with Barak Weiss) 

April 26, 2012, 400 pm at Science Center, room 530 
NUMBER THEORY SEMINAR 
Nicolas Ojeda Bar (HARVARD UNIVERSITY) 
Towards a cohomological construction of BreuilKisin modules 

April 25, 2012, 300 at Science Center, room 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Dierk Scheicher (JACOBS UNIVERSITY) 
News about Newton global dynamics and efficient root finding 

April 25, 2012, 400 pm at Science Center, room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
Arend Bayer (UCONN STORR) 
Projectivity and birational geometry of Bridgeland moduli spaces 

April 24, 2012, 300  400 p.m. at MIT (2147) 
HARVARD/MIT GRAD STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
Dennis Gaitsgory (HARVARD UNIVERSITY) 
Factorization algebras attached to quantum groups, continuation 

April 24, 2012, 530pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
Paul Bourgade (HARVARD UNIVERSITY) 
The circular law 

April 23, 2012, 300 pm at Science Center, room 507 
GAUGE THEORY & TOPOLOGY SEMINAR 
Ethan Street (HARVARD UNIVERSITY) 
Towards an Instanton Floer Homology for Tangles 

April 20, 2012, 330pm at Science Center, Room 507 
RANDOM MATRIX & PROBABILITY SEMINAR 
Philippe Di Francesco (INSTITUT DE PHYSIQUE THEORIQUE DU C.E.A., SACLAY, FRANCE AND M.S.R.I, BERKELEY) 
Discrete Integrable Systems and Cluster Algebras 

April 19, 2012, 300 pm at Science Center, room 232 
BRANDEIS  HARVARDMITNORTHEARSTERN COLLOQUIUM AT HARVARD 
Ravi Vakil (STANFORD UNIVERSITY) 
Limits of discriminants in algebraic geometry 

April 19, 2012, 430 pm at Harvard University Science Center, Hall A 
NUMBER THEORY SEMINAR 
Nicolas Templier (PRINCETON UNIVERSITY) 
Harmonic families of automorphic representations 

April 18, 2012, 300 p.m. at Science Center, room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
Izzet Coskun (UIC) 
Bridgeland stability 

April 17, 2012, 300 pm at Harvard University Science Center, room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
Dennis Gaitsgory (HARVARD UNIVERSITY) 
Factorizations algebras attached to quantum groups 

April 17, 2012, 530 pm at MIT room 2190 
BASIC NOTIONS SEMINAR 
Alex Bloemendal (HARVARD UNIVERSITY) 
Continuum limits of random matrices at the spectral edge 

April 16, 2012, 300 pm at Science Center, room 507 
GAUGE THEORY & TOPOLOGY 
Thomas Koberda (HARVARD UNIVERSITY) 
Mapping class groups, homology and finite covers of surfaces 

April 13, 2012, 330 pm at Science Center, room 507 
PROBABILITY SEMINAR 
Naor, A. (NYU) 
Grothendieck's inequality and the propeller conjecture. 

April 12, 2012, 300 pm at Science Center, room 232 
TRIVIAL NOTIONS 
YuShen Lin (HARVARD UNIVERSITY) 
Mirror Symmetry from SYZ 

April 12, 2012, 200 p.m. at Science Center, room 310 
NUMBER THEORY SEMINAR 
Jayce Getz (MCGILL UNIVERSITY) 
An approach to nonsolvable base change for GL(2) 

April 11, 2012, 300 pm at Science Center, room 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Nathan Dunfield (UNIVERSITY OF ILLINOIS AT URBANACHAMPAIGN) 
Integer homology 3spheres with large injectivity radius 

April 11, 2012, 400 pm at Science Center, room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
Jorge Vitorio Pereira (IMPA) 
Singular foliations with trivial canonical class 

April 10, 2012, 300  400 p.m. at MIT (2147) 
BASIC NOTIONS SEMINAR 
YumTong Siu (HARVARD UNIVERSITY) 
Multiplier Ideal Scheaves 

April 9, 2012, 300  400 pm at Science Center, room 507 
GAUGE THEORY & TOPOLOGY 
Nathan Dunfield (UIUC) 
Twisted Alexander polynomials of hyperbolic knots 

April 6, 2012, 330 pm at Science Center, room 507 
RANDOM MATRIX & PROBABILITY SEMINAR 
Bourgade, P (HARVARD UNIVERSITY) 
Strong Szegö asymptotics for Lfunctions 

April 5, 2012, 300 pm at Science Center, room 232 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Tom Sharland (UNIVERSITY OF WARWICIK) 
Polynomial matings and rational maps with cluster cycles 

April 4, 2012, 400 pm at Science Center, room 507 
NUMBER THEORY SEMINAR 
Bianca Viray (BROWN UNIVERSITY) 
A strengthened GrossZagier formula for singular moduli 

April 4, 2012, 300 pm at Science Center, room 507 
LOGIC COLLOQUIUM 
Tony Martin () 
Exploring the Frontiers of Incompleteness (Ninth Presentation) Completeness or Incompleteness of Basic Mathematical Concepts 

April 4, 2012, 400 pm at The Fong Auditorium, Harvard University 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
Dustin Clausen () 
Koszul duality and Verdier duality 

April 3, 2012, 530 pm at MIT room 2190 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
Paolo Aluffi (FLORIDA STATE) 
Chern classes of hypersurface arrangements 

April 3, 2012, 300 pm at Harvard University Science Center, room 507 
BASIC NOTIONS 
Keerthi Madapusi Pera (HARVARD UNIVERSITY) 
padic uniformization and Hodge cycles on abelian varieties 

April 2, 2012, 300 pm at Science Center, room 507 
GAUGE THEORY & TOPOLOGY 
Max Lipyanskiy (COLUMBIA UNIVERSITY) 
GromovUhlenbeck Compactness 

March 30, 2012, 330 pm at Science Center, room 507 
PROBABILITY SEMINAR 
Chatterjee, S. (NYU) 
Invariant measures and the soliton resolution conjecture 

March 30, 2012, 130 **special time** at Science Center, room 232 
TRIVIAL NOTIONS 
Aliakbar Daemi (HARVARD UNIVERITY) 
Lie geometry 

March 29, 2012, 200 p.m. at Science Center, room 310 
NUMBER THEORY SEMINAR 
Eddie Herman (UNIVERSITY OF CHICAGO) 
Beyond Endoscopy for the Symmetric Cube Lfunction 

March 28, 2012, 300 pm at Science Center, room 507 
LOGIC COLLOQUIUM 
John Steel () 
Exploring the Frontiers of Incompleteness (Eighth Presentation) The Triple Helix 

March 28, 2012, 400 pm at The Fong Auditorium, Harvard University 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Kathryn Lindsey (CORNELL UNIVERSITY) 
Invariant components of translation surfaces 

March 28, 2012, 400 pm at Science Center, room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
() 
NO SEMINAR ON THIS DATE 

March 27, 2012, at 
BASIC NOTIONS 
Sophie Morel (HARVARD UNIVERSITY) 
Langlands Functoriality 

March 26, 2012, 300 pm at Science Center, room 507 
TRIVIAL NOTIONS 
Gabriel Bujokas () 
Poncelet's Porism 

March 22, 2012, 200 p.m. at Science Center, room 310 
NUMBER THEORY SEMINAR 
Samit Dasgupta (UNIVERSITY OF CALIFORNIA  SANTA CRUZ) 
On Greenberg's conjecture for symmetric square padic Lfunctions 

March 21, 2012, 300 pm at Science Center, room 507 
LOGIC COLLOQUIUM 
James Cummings () 
Exploring the Frontiers of Incompleteness (Seventh Presentation) / Some Challenges for the philosophy of set theory 

March 21, 2012, 400 pm at The Fong Auditorium, Harvard University 
RANDOM MATRIX & PROBABILITY SEMINAR 
Martin Hairer (UNIVERSITY OF WARWICK) 
Solving the KPZ equation 

March 20, 2012, 300  400 pm at Science Center, room 232 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
Alina Marian (NORTHEASTERN) 
Verlinde sheaves and strange duality for K3 and abelian surfaces 

March 20, 2012, 300  400 pm at Science Center, room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR ON GEOMETRIC REPRESENTATION THEORY 
Jacob Lurie (HARVARD UNIVERSITY) 
Verdier and Koszul duality for factorization algebras 

March 20, 2012, 530 pm at Science Center, room 507 
BASIC NOTIONS SEMINAR 
Vaibhav Gadre (HARVARD UNIVERSITY) 
Word and relative metrics along random geodesics. 

March 19, 2012, 300 pm at Science Center, room 507 
PROBABILITY SEMINAR 
Ivan Corwin (MICROSOFT RESEARCH, MIT) 
Gibbsian line ensembles 

March 16, 2012, 130 pm at Science Center, room 232 
PROBABILITY SEMINAR 
J. Lee Harvard () 
Directed polymer at weak disorder 

March 9, 2012, 130 pm at Science Center, room 232 
GAUGE THEORY & TOPOLOGY 
Cliff Taubes (HARVARD UNIVERSITY) 
SL(2;C) connections with L^2 bounds on curvature 

March 9, 2012, 330 pm at Science Center, room 507 
RANDOM MATRIX & PROBABILITY SEMINARN 
R. Movassagh () 
Density of States of Quantum Spin Systems from Isotropic Entanglement 

March 8, 2012, 300 pm at Science Center, room 232 
RANDOM MATRIX & PROBABILITY SEMINAR 
J. Lee Harvard () 
Density of States of Quantum Spin Systems from Isotropic Entanglement 

March 8, 2012, 300 pm at Science Center, room 232 
THE THURSDAY SEMINAR 
Mike Hopkins (HARVARD UNIVERSITY) 
Cohomology of formal groups 

March 8, 2012, 300 pm at Science Center, room 507 
TRIVIAL NOTIONS 
Giulio Tiozzo (HARVARD UNIVERSITY) 
Apollonian circle packings 

March 8, 2012, 200 p.m. at Science Center, room 310 
NUMBER THEORY SEMINAR 
Jacob Tsimerman (HARVARD UNIVERSITY) 
Lower bounds for Galois orbits and the AndreOort Conjecture 

March 7, 2012, 300 pm at Science Center, room 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Scott Wolpert (UNIVERSITY OF MARYLAND) 
Infinitesimal deformations of nodal stable curves 

March 7, 2012, 400 pm at Science Center, room 507 
GEOMETRIC REPRESENTATION THEORY SEMINAR 
Jacob Lurie (HARVARD UNIVERITY) 
Factorization structures in topology  III 

March 6, 2012, 530 pm at MIT room 2190 
BASIC NOTIONS SEMINAR 
Wilfried Schmid (HARVARD UNIVERSITY) 
Mixed Hodge modules 

March 5, 2012, 300 pm at Science Center, room 507 
PROBABILITY SEMINAR 
I. Corwin (MIT/ MICROSOFT) 
Quantum many body systems solvable via a new integral ansatz 

March 2, 2012, 130 pm at Science Center, room 232 
GAUGE THEORY & TOPOLOGY 
Sushmita Venugopalan (RUTGERS UNIVERSITY) 
YangMills heat flow on gauged holomorphic maps 

March 2, 2012, 330 pm at Science Center, room 507 
RANDOM MATRIX SEMINAR 
Michael Damron (PRINCETON UNIVERSITY) 
A simplified proof of the relation between scaling exponents in first  passage percolation. 

March 1, 2012, 300 pm at Science Center, room 232 
HARVARDMITNORTHEASTERN COLLOQUIUM AT HARVARD 
Harvey Friedman (OHIO STATE UNIVERSITY) 
Maximality and incompleteness 

March 1, 2012, 430 at Science Center, Lecture Hall A 
TRIVIAL NOTIONS 
Carl Erickson (HARVARD UNIVERSITY) 
The Siegel Zero 

March 1, 2012, 200 p.m. at Science Center, room 310 
NUMBER THEORY SEMINAR 
Xinwen Zhu (HARVARD UNIVERSITY) 
Local models of Shimura varieties 

February 29, 2012, 300 pm at Science Center, room 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Dzmitry Dudko (JACOBS UNIVERSIRTY) 
Matings with laminations 

February 29, 2012, 400 pm at Science Center, room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR ON GEOMETRIC REPRESENTATION THEORY 
Jacob Lurie (HARVARD UNIVERSITY) 
Factorization structures in topology, continuation 

February 28, 2012, 530 pm at Harvard University Science Center, room 507 
BASIC NOTIONS SEMINAR 
Barry Mazur (HARVARD UNIVERSITY) 
Statistics in the arithmetic of elliptic curves 

February 27, 2012, 300 pm at Science Center, room 507 
NUMBER THEORY SEMINAR **NOTE DIFFERENT TIME, PLACE, & DAY** 
Bharghav Bhatt (UNIVERSITY OF MICHIGAN) 
Comparison theorems in padic Hodge theory 

February 24, 2012, 330 pm at Science Center, room 232 
GAUGE THEORY & TOPOLOGY 
Max Lipyanskiy (COLUMBIA UNIVERSITY) 
GromovUhlenbeck Compactness (CANCELLED) 

February 24, 2012, at 
TRIVIAL NOTIONS 
Ethan Street (HARVARD UNIVERSITY) 
The Dzhanibekov Effect, or The Tennis Racket Theorem 

February 23, 2012, 200 p.m. at Science Center, room 310 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Giulio Tiozzo (HARVARD UNIVERSITY) 
Entropy and dimension of real sections of the Mandelbrot set 

February 22, 2012, 400 pm at Science Center, room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
Samual Grushevsky (STONY BROOK) 
Pairs of real normalized differentials, cohomology of Mg, and cusps of plane curves 

February 21, 2012, 300 pm at Harvard University Science Center, room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
Jacob Lurie (HARVARD UNIVERSITY) 
Factorization structures in the topological setting 

February 21, 2012, 545 pm at MIT room 2190 
GAUGE THEORY & TOPOLOGY 
John Pardon (STANFORD UNIVERSITY) 
Totally disconnected groups (not) acting on threemanifolds 

February 17, 2012, 330 at Science Center, room 507 
TRIVIAL NOTIONS 
George Boxer () 
Crystals, Young Tableaux, Littelmann Paths, and Representation Theory 

February 16, 2012, 200 p.m. at Science Center, room 310 
PROBABILITY SEMINAR 
David R. Nelson (HARVARD UNIVERSITY (DEPARTMENT OF PHYSICS)) 
Competition and Cooperation at Frontiers 

February 16, 2012, 300 pm at Science Center, room 232 
LOGIC COLLOQUIUM 
Philip Welch () 
Exploring the Frontiers of Incompleteness (Sixth Presentation) / Global Reflection Principles 

February 15, 2012, 400 pm at The Fong Auditorium, Harvard University 
NUMBER THEORY SEMINAR 
Keerthi Madapusi Pera (HARVARD UNIVERSITY) 
The Tate conjecture for K3 surfaces over finite fields of odd characteristic 

February 15, 2012, 300 pm at Science Center, room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
Dennis Gaitsgory (HARVARD UNIVERSITY) 
Factorizable gerbes 

February 14, 2012, 530 pm at MIT room 2190 
BASIC NOTIONS SEMINAR 
Benedict Gross (HARVARD UNIVERSITY) 
Discriminants and root discriminants 

February 13, 2012, 300 pm at Science Center, room 507 
GAUGE THEORY & TOPOLOGY 
Adam Levine (BRANDEIS) 
Bordered Floer homology and splicing knot complements 

February 10, 2012, 330 pm at Science Center, room 507 
TRIVIAL NOTIONS 
Nathan Kaplan (HARVARD UNIVERSITY) 
Incidence Problems in the Plane 

February 9, 2012, 200 p.m. at Science Center, room 310 
RANDOM MATRIX & PROBABILITY SEMINAR 
Ivan Corwin (MICROSOFT RESEARCH NEW ENGLAND AND MIT) 
Macdonald processes and solvability in the KPZ universality class 

February 9, 2012, 300 pm at Science Center, room 232 
NUMBER THEORY SEMINAR 
Matthew Emerton (UNIVERSITY OF CHICAGO) 
A new perspective on the BreuilMezard conjecture 

February 8, 2012, 300 pm at Science Center, room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
Dennis Gaitgory (HARVARD UNIVERSITY) 
Quantum groups and factorizable sheaves an overview 

February 7, 2012, 530 pm at 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
TBA () 
TBA 

February 7, 2012, 530 pm at Science Center, room 507 
BASIC NOTIONS SEMINAR 
HongTzer Yau (HARVARD UNIVERSITY) 
Random Matrix, Beta ensembles, and Dyson Brownian Motion 

February 6, 2012, 300 pm at Science Center 507 
RANDOM MATRIX & PROBABILITY SEMINAR 
Vershynin, R. U. (MICHIGAN, ANN ARBOR) 
Random hyperplane tessellations and embeddings into metric spaces 

February 2, 2012, 300 pm at Science Center, room 232 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Thomas Koberda (HARVARD UNIVERSITY) 
Mapping class groups, homology and finite covers of surfaces 

February 1, 2012, 400 pm at Science Center, room 507 
NUMBER THEORY SEMINAR 
Joseph Rabinoff (HARVARD UNIVERSITY) 
The Skeleton of the Jacobian and the Jacobian of the Skeleton 

February 01, 2012, 300 pm at Science Center, room 507 
PROBABILITY SEMINAR 
Pierre Nolin (ETH ZüRICH) 
Twodimensional percolation and selforganized criticality 

January 31, 2012, 300 pm at Science Center, room 530 
NUMBER THEORY SEMINAR 
Joël Bellaïche (BRANDEIS UNIVERSITY) 
A universal Galois representation attached to modular forms of level 1 modulo 2 

January 25, 2012, 300 pm at Science Center, room 507 
NUMBER THEORY SEMINAR 
JACK THORNE (HARVARD UNIVERSITY) 
Some canonical constructions in arithmetic invariant theory 

December 14, 2011, 300 pm at Science Center, room 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
JON CHAIKA (UNIVERSITY OF CHICAGO) 
Badly approximable directions on flat surfaces 

December 14, 2011, 430 pm at Science Center, room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
MAXIM ARAP (UNIVERSITY OF GEORGIA) 
Classification of smooth weak Fano threefolds of Picard number two 

December 13, 2011, 300 pm at MIT, room 2146 
GAUGE THEORY & TOPOLOGY 
LIAM WATSON () 
Lspaces and leftorderability 

December 9, 2011, 330 pm at Science Center, room 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
IAN BIRINGER (YALE UNIVERSITY) 
Geometry of Hyperbolic 3Manifolds with Constrained Rank 

December 7, 2011, 430 pm at Science Center, room 507 
NUMBER THEORY SEMINAR 
JUNECUE SUH (HARVARD UNIVERSITY) 
Parity in the cohomology of varieties over finite fields 

December 7, 2011, 300 pm at Science Center, room 507 
LOW DIMENSIONAL NOTIONS 
CAGATAY KUTLUHAN () 
Embedded contact homology 

December 6, 2011, 1200 pm at Science Center, room 530 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
PATRICK BROSNAN () 
TBA 

December 6, 2011, 300 pm at Harvard University Science Center, room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
DENNIS GAITSGORY (HARVARD UNIVERSITY) 
Recovering the full KazhdanLusztig tensor product 

December 6, 2011, 530 pm at Science Center, room 507 
GAUGE THEORY & TOPOLOGY 
DAVID SHEA VELAVICK (COLUMBIA UNIVERSITY) 
Contact structures and knot Floer homology 

December 2, 2011, 330 pm at Science Center, room 507 
RANDOM MATRIX & PROBABILITY SEMINAR 
J. LEBOWITZ (RUTGERS UNIVERSITY) 
Time Evolution and Stationary States of Macroscopic Systems Classical and Quantum 

December 1, 2011, 300 pm at Science Center, room 232 
THURSDAY SEMINAR 
CHRIS SCHOMMERPRIES () 
Invertible Conformal Nets 

December 1, 2011, 300 pm at Harvard University Science Center, room 507 
NUMBER THEORY SEMINAR 
DAVID BROWN (EMORY UNIVERSITY) 
Random Dieudonne Modules and the CohenLenstra conjectures 

November 30, 2011, 300 pm at Science Center, room 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
JOSHUA BROWN (SUNY STONY BROOK) 
Rockpaperscissors in the complex world 

November 30, 2011, 430 pm at Science Center, room 507 
LOW DIMENSIONAL NOTIONS 
CAGATAY KUTLUHAN () 
Pseudoholomorphic curves and monopoles 

November 29, 2011, 1200 pm at Science Center 530 
HARVARD/MIT GRADUATE STUDENT SEMINAR ON GEOMETRIC REPRESENTATION THEORY 
DENNIS GAITSGORY (HARVARD UNIVERSITY) 
Local definition of the KL tensor product 

November 29, 2011, 530 pm at MIT, room 2190 
BASIC NOTIONS SEMINAR 
DAVID KAZHDAN (HEBREW UNIVERSITY OF JERUSALEM) 
Quivers and quantum groups. 

November 28, 2011, 300 pm at Science Center, room 507 
LOW DIMENSIONAL NOTIONS 
ETHAN STREET (HARVARD UNIVERSITY) 
Operators on Instanton Homology and Property P 

November 22, 2011, 1200 pm at Science Center, room 530 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
ARTAN SHESHMANI (UNIVERSITY OF BRITISH COLUMBIA) 
Higher rank stable pairs and virtual localization over local Calabi Yau threefolds and K3 surfaces 

November 22, 2011, 300 pm at Harvard University Science Center, room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR ON GEOMETRIC REPRESENTATION THEORY 
DENNIS GAITSGORY (HARVARD UNIVERSITY) 
Finally, the Sugawara construction 

November 22, 2011, 530 pm at Harvard University Science Center, room 507 
BASIC NOTIONS SEMINAR 
MARK KISIN (HARVARD UNIVERSITY) 
The Tate conjecture 

November 21, 2011, 300 pm at Science Center, room 507 
NUMBER THEORY SEMINAR *DIFFERENT TIME &DAY* 
DINESH THAKUR (UNIVERSITY OF ARIZONA) 
Diophantine approximation in finite characteristic 

November 21, 2011, 430 pm at Science Center, room 507 
GAUGE THEORY & TOPOLOGY 
MAX LIPYANSKIY (COLUMBIA UNIVERSITY) 
TALK POSTPONED 

November 18, 2011, CANCELED FOR TODAY at 
THE THURSDAY SEMINAR 
CHRIS SCHOMMERPRIES () 
The Free Fermion Net 

November 17, 2011, 300 pm at Science Center, room 507 
TRIVIAL NOTIONS 
CHAO LI (HARVARD UNIVERSITY) 
Shimura Curves 

November 17, 2011, 1130 am at Science Center, room 507 
RANDOM MATRIX SEMINAR 
SODIN, S (IAS) 
A supersymmetric transfer matrix approach to random band matrices (based on joint work with M. Disertori and Spenser) 

November 17, 2011, 300 pm at Science Center, room 232 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
JOHANNA MANGAHAS (BROWN UNIVERSITY) 
Orbit trees in the curve complex 

November 16, 2011, 430 pm at Science Center, room 507 
NUMBER THEORY SEMINAR 
AARON SILBERSTEIN (HARVARD UNIVERSITY) 
Intersection Theory in the Birational Fundamental Groups of Surfaces and Gal(Q/Q) 

November 16, 2011, 300 pm at Science Center 507 
INFORMAL PROBABILITY SEMINAR 
A. DEMBO (STANFORD UNIVERSITY) 
Factor models on locally treelike graphs. 

November 15, 2011, 300 pm at Science Center, room 232 
LOW DIMENSIONAL NOTIONS SEMINAR 
ALIAKBAR DAEMI (HARVARD UNIVERSITY) 
Instanton Floer homology 

November 15, 2011, 1200 pm at Science Center, room 530 
HARVARD/MIT GRADUATE STUDENT SEMINAR ON GEOMETRIC REPRESENTATION THEORY 
DENNIS GAITSGORY (HARVARD UNIVERSITY) 
Structure of crystal on the category of chiral modules. 

November 15, 2011, 530 pm at MIT, room 2190 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
JIE WANG (OHIO STATE) 
Generic vanishing results on certain Koszul cohomology groups 

November 15, 2011, 300 pm at MIT (2146) 
BASIC NOTIONS SEMINAR 
NIR AVNI (HARVARD UNIVERSITY) 
IRS 

November 14, 2011, 300 pm at Science Center, room 507 
BRANDEIS  HARVARDMITNORTHEARSTERN COLLOQUIUM AT HARVARD 
CRAIG TRACY (U C DAVIS) 
Turbulent liquid crystals, KPZ universality and the asymmetric simple exclusion process 

November 10, 2011, 430 pm at Science Center, Lecture Hall A 
RANDOM MATRIX SEMINAR 
DMITRY DOLGOPYAT (MARYLAND UNIVERSITY) 
Random perturbations of area preserving flows of surfaces. 

November 10, 2011, 300 pm at Science Center, room 232 
TRIVIAL NOTIONS 
XIOHENG WANG (HARVARD UNIVERSITY) 
BCGRS II  Baby Coxeter Groups and Root Systems II 

November 10, 2011, 1130 am at Science Center, room 309 
NUMBER THEORY SEMINAR 
JEANINE VAN ORDER (ECOLE POLYTECHNIQUE FEDERALE LAUSANNE) 
Some divisibility questions for padic Lfunctions 

November 9, 2011, 300 pm at Science Center, room 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
TANYA FIRSOVA (SUNY STONY BROOK) 
The critical locus for complex Henon Maps 

November 9, 2011, 430 pm at Science Center, room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR ON GEOMETRIC REPRESENTATION THEORY 
DENNIS GAITSGORY (HARVARD UNIVERSITY) 
Universal constructions of crystals and Sugawara, a continuation of the previous talk. 

November 8, 2011, 530 pm at Science Center, room 507 
LOW DIMENSIONAL NOTIONS 
ANDREW COTTONCLAY (HARVARD UNIVERSITY) 
Geometric applications of pseudoholomorphic curves 

November 8, 2011, 1200 pm at Science Center, room 530 
BASIC NOTIONS SEMINAR 
CLIFF TAUBES (HARVARD UNIVERSITY) 
'Differential equations, compactness and topology'. 

November 7, 2011, 300  400 pm at Science Center, room 507 
GAUGE THEORY & TOPOLOGY 
BARNEY BRAMHAM () 
Approximating Hamiltonian systems by integrable systems using pseudoholomorphic curves 

November 4, 2011, 330  430 pm at Science Center, room 507 
RANDOM MATRIX SEMINAR 
KAROL KOZLOWSKI (INDIANA UNIVERSITYPERDUE UNIVERSITY INDIANAPOLIS) 
Asymptotic analysis of cyclic multiple intergrals 

November 3, 2011, 300 pm at Science Center, room 232 
TRIVIAL NOTIONS 
STERGIOS ANTONAKOUDIS (HARVARD UNIVERSITY) 
Dynamics on M_g 

November 3, 2011, 1130 am at Science Center, room 309 
THE THURSDAY SEMINAR 
MIKE HOPKINS (HARVARD UNIVERSITY) 
Examples of conformal nets loop groups and free fermions 

November 3, 2011, 300 pm at Science Center, room 507 
LOGIC COLLOQUIUM 
CHARLES PARSONS () 
EXploring the Frontiers of Incompleteness (Fourth Presentation) / Evidence and the hierarchy of mathematical theories 

November 2, 2011, 400 pm at The Fong Auditorium, Harvard University 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
XAVIER BUFF (UNIVERSITY PAUL SABATIER, TOULOUSE) 
Rescaling limits of rational maps 

November 2, 2011, 430 pm at Science Center, room 507 
NUMBER THEORY SEMINAR 
ANDREW SNOWDEN (MIT) 
Singularities of ordinary deformation rings 

November 2, 2011, 300 pm at Science Center, room 507 
LOW DIMENSIONAL NOTIONS 
TIRASAN KHANDHAWIT () 
Introduction to monopole Floer homology 

November 1, 2011, 1200 pm at Science Center, room 530 
HARVARD/MIT GRADUATE STUDENT SEMINAR ON GEOMETRIC REPRESENTATION THEORY 
DENNIS GAITSGORY (HARVARD UNIVERSITY) 
Universal construction on curves, a rerun of the talk from Oct. 18th 

November 1, 2011, 530 pm at MIT, room 2190 
BASIC NOTIONS SEMINAR 
JACOB LURIE (HARVARD UNIVERSITY) 
DijkgraafWitten models and vanishing theorems for higher Tate cohomology 

October 31, 2011, 300  400 pm at Science Center, room 507 
GAUGE THEORY & TOPOLOGY 
HIROFUMI SASAHIRA (NAGOYA UNIVERSITY) 
Instanton Floer homology for lens space 

October 28, 2011, 330  430 pm at Science Center, room 507 
TRIVIAL NOTIONS 
NATHAN PFLUEGER (HARVARD UNIVERSITY) 
Semigroups and curves 

October 27, 2011, 1130 am at Science Center, room 309 
RANDOM MATRIX SEMINAR 
J. NOVAK (MIT) 
Monotone Hurwitz numbers and the HCIZ integral 

October 27, 2011, 300 pm at Science Center, room 232 
THURSDAY SEMINAR 
JACOB LURIE (HARVARD UNIVERSITY) 
Fusion, revisited 

October 27, 2011, 300  500 pm at Science Center, room 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
ROLAND ROEDER (INDIANA UNIVERSITYPERDUE UNIVERSITY INDIANAPOLIS) 
Intertwined Basis for a cylinder map arising from statistical physics 

October 26, 2011, 430 pm at Science Center, room 507 
NUMBER THEORY SEMINAR 
() 
NO SEMINAR ON THIS DATE 

October 26, 2011, 300  400 pm at 
GEOMETRY REPRESENTATION THEORY 
() 
NO TALK TODAY 

October 25, 2011, 530 pm at 
LOW DIMENSIONAL NOTIONS 
JOSHUA BATSON () 
Applications of Heegaard Floer Homology 

October 25, 2011, 1200 pm at Science Center, room 530 
BASIC NOTIONS 
PETER KRONHEIMER (HARVARD UNIVERSITY) 
A recent history of the 4dimensional Poincaré conjecture 

October 24, 2011, 330  430 pm at Science Center, room 507 
SPECIAL SEMINAR 
ILAN BARNEA (HEBREW UNIVERSITY OF JERUSALEM) 
How can homotopy theory be useful to number theory 

October 24, 2011, 430 pm at Science Center, room 507 
GAUGE THEORY & TOPOLOGY 
VIVEK SHENDE (MIT) 
Hilbert schemes of plane curve singularities and knot invariants 

October 21, 2011, 330 pm at Science Center, room 507 
PROBABILITY SEMINAR 
E. CARLEN (RUTGERS UNIVERSITY) 
Recent Progress on Kac's Probabilistic Approach to Kinetic Theory 

October 21, 2011, 130 pm at Science Center, room 232 
WORKING SEMINAR OF RANDOM MATRICES 
J. NOVAK () 
Discovering the free world/ LECTURE II 

October 20, 2011, 3 pm at Science Center, Room 232 
THE THURSDAY SEMINAR 
GIJS HUETS () 
The 3catagory of conformal nets, part III sectors 

October 20, 2011, 300  500 pm at Science Center, room 507 
TRIVIAL NOTIONS 
ERIC REIDL (HARVARD UNIVERSITY) 
The Syzygy 

October 20, 2011, 1130  1230 at Science Center, room 309 
LOGIC COLLOQUIUM 
JOEL HAMKINS () 
Exploring the Frontiers of Incompleteness (Third Presentation) / The Settheoretic Multiverse 

October 19, 2011, 400 pm at The Fong Auditorium, Harvard University 
NUMBER THEORY SEMINAR 
ANA CARAIANI (HARVARD UNIVERSITY) 
Localglobal compatibility and monodromy 

October 19, 2011, 300 pm at Science Center, room 507 
GEOMETRY REPRESENTATION THEORY 
ANDREI NEGUT (HARVARD UNIVERSITY) 
The Sugawara Construction 

October 18, 2011, 530 pm at MIT, room 2190 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
ANAND DEOPURKAR (HARVARD UNIVERSITY) 
Alternate compactifications of Hurwitz spaces 

October 18, 2011, 300 pm at MIT (2146) 
LOW DIMENSIONAL NOTIONS 
AILSA KEATING () 
Introduction to Lagrangian Floer homology 

October 18, 2011, 1200 pm at Science Center 530 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
JEREMY KAHN (BROWN UNIVERSITY) 
Geometric Limits and Renormalization 

October 17, 2011, 430 pm at Science Center, room 507 
BASIC NOTIONS SEMINAR 
GERALD SACKS (HARVARD UNIVERSITY) 
Models of set theory via measure theory 

October 17, 2011, 3 PM at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
NIKOLAI SAVELIEV (MIAMI) 
An index theorem for endperiodic operators 

October 14, 2011, 330  430 pm at Science Center, Room 507 
WORKING SEMINAR OF RANDOM MATRICES 
J. NOVAK () 
Discovering the free world/ LECTURE 1 

October 14, 2011, 130 PM at Science Center, Room 530 
RANDOM MATRIX AND PROBABILITY SEMINARS 
A. SOSHINIKOV (UC DAVIS) 
Outliers of finite rank deformations of Wigner matrices and related things 

October 13, 2011, 3 pm at Science Center, Room 530 
THE THURSDAY SEMINAR 
EMILY PETERS () 
The Connes fusion tensor product 

October 13, 2011, 3  5 PM at Science Center, Room 507 
NUMBER THEORY SEMINAR 
JONATHAN POTTHARST (BOSTON UNIVERSITY) 
Selmer groups on the eigencurve 

October 12, 2011, 300  400 pm at Science Center, room 507 
SPECIAL LECTURE 
JEANPIERRE SERRE () 
Modular forms modulo 2 of level 1 

October 11, 2011, 200  300 at Harvard University Science Center, room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
DAWEI CHEN (BOSTON COLLEGE) 
Geometry of Teichmueller Curves II Quadratic Differentials 

October 11, 2011, 300  400 pm at Harvard University Science Center, room 507 
LOW DIMENSIONAL NOTIONS 
PETER KRONHEIMER (HARVARD UNIVERSITY) 
SeibergWritten invariants of 4manifolds (II) 

October 11, 2011, 1200 pm at Science Center, room 530 
GAUGE THEORY AND TOPOLOGY 
PAUL SEIDEL (MIT) 
Symplectic invariants beyond GromovWitten theory/ Please notice the change in date. 

October 07, 2011, 330 PM at Science Center, Room 507 
THE THURSDAY SEMINAR 
GIJS HEUTS () 
The 3 category of conformal nets, part II defects 

October 6, 2011, 300  500 pm at Science Center, room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
FRANCESCO CELLAROSI (PRINCETON UNIVERSITY) 
On the M\obius Function and Statistical Mechanics 

October 06, 2011, 3 pm at Science Center, Room 232 
TRIVIAL NOTIONS 
MATTHEW WOOLF (HARVARD UNIVERSITY) 
Amenable groups 

October 6, 2011, 1130  1230 at Science Center, room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
OLEG IVRIL (HARVARD UNIVERSITY) 
A WeilPetersson metric on Blaschke products 

October 05, 2011, 430 pm at Science Center, room 507 
LOGIC COLLOQUIUM 
SOLOMON FEFERMAN () 
Exploring the Frontiers of Incompleteness/ Is the Continuum Hypothesis a definite mathematical problem? 

October 5, 2011, 400 pm at The Fong Auditorium 
NUMBER THEORY SEMINAR 
JEANPIERRE SERRE () 
Introduction to the SatoTate conjecture 

October 05, 2011, 300  400 pm at Science Center, room 507 
AHLFORS LECTURES 
ELLIOTT LIEB (PRINCETON UNIVERSITY) 
The HardyLittlewoodSobolev inequality and its generalization to the Heisenberg group 

October 04, 2011, 415  515 pm at Harvard University Science Center Lecture Hall A 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
GIORGIA FORTUNA () 
The Fusion tensor product 

October 04, 2011, 530 pm at MIT, room 2190 
LOW DIMENSIONAL NOTIONS 
TATYANA KOBYLYATSKAYA (HARVARD UNIVERSITY) 
Introduction to Heegaard Floer Homology 

October 04, 2011, 1200 pm at Science Center, room 530 
BASIC NOTIONS 
JeanPierre Serre () 
Integration and Equidistribution 

October 03, 2011, 300  400 pm at Science Center, room 507 
AHLFORS LECTURES 
ELLIOTT LIEB (PRINCETON UNIVERSITY) 
Symmetry breaking, reflection positivity and phase transitions 

October 03, 2011, 415  515 pm at Harvard University Science Center Lecture Hall B 
GAUGE THEORY & TOPOLOGY 
THOMAS KRAGH (MIT) 
Fibration of Symplectic Homology in Contangent Bundles 

September 30, 2011, 330  430 pm at Science Center, room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
P. FERRARI (BONN) 
Nonintersecting random walks in the neighborhood of a symmetric tacnode 

September 29, 2011, 3 pm at Science Center, Room 232 
THE THURSDAY SEMINAR 
Mike Hopkins (HARVARD UNIVERSITY) 
The 3catagory of conformal nets, part I 

September 29, 2011, Thursday, September 29, 2011 at Science Center, room 507 
TRIVIAL NOTIONS 
JEFF KUAN () 
Interlacing particle systems 

September 29, 2011, 1130  1230 at Science Center, room 309 
NUMBER THEORY SEMINAR 
JARED WEINSTEIN (BOSTON UNIVERSITY) 
Maximal varieties over finite fields 

September 28, 2011, 3  4 pm at Science Center, Room 507 
INFORMAL DYNAMICS & GEOMETRY SEMINAR 
Will Cavendish (PRINCETON UNIVERSITY) 
Solenoids over 3manifolds 

September 28, 2011, 430 pm at Science Center, room 507 
LOW DIMENSIONAL NOTIONS 
Peter Kronheimer (HARVARD UNIVERSITY) 
SeibergWritten invariants of 4manifolds 

September 27, 2011, 1200 pm at Science Center 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
SASHA TSYMBALYUK & GIORGIA FORTUNA () 
Talk 1 Structure of Category O (Continuation of the talk last week). Talk 2 The fusion tensor product. 

September 27, 2011, 530 PM at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
Elham Izadi (UNIVERSITY OF GEORGIA) 
Some limits of the Scorza correspondence 

September 27, 2011, 300 pm at Science Center 507 
BASIC NOTIONS SEMINAR 
NOAM ELKIES (HARVARD UNIVERSITY) 
Covers of the Riemann sphere branched at few points 

September 26, 2011, 3 PM at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
STEVEN SIVEK (HARVARD UNIVERSITY) 
Monopole Floer homology and Legendrian knots 

September 23, 2011, 330  430 pm at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
O. BERNARDI (MIT) 
Computing the moments of the GOE bijectively PLEASE NOTICE THE CHANGE IN ROOM 

September 22, 2011, 3 pm at Science Center, Room 530 
THE THURSDAY SEMINAR 
JACOB LURIE (HARVARD UNIVERSITY) 
ChernSimons theory 

September 22, 2011, 3  5 PM at Science Center, Room 507 
COLLOQUIUM 
JEANPIERRE SERRE () 
Variation with p of the number of solutions mod p of a system of polynomial equations 

September 22, 2011, 430 pm at Science Center, Hall A 
LOGIC COLLOQUIUM 
HUGH WOODIN () 
The realm of the infinite 

September 21, 2011, 4 PM at The Fong Auditorium, Harvard University 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
R.E. SCHWARTZ (BROWN UNIVERSITY) 
Polygonal outer billiards, polytope exchanges, and renormalization 

September 21, 2011, 430 pm at Science Center, Room 507 
LOW DIMENTIONAL NOTIONS SEMINAR 
STEVEN SIVEK () 
Contact Geometry and Giroux Correspondence 

September 20, 2011, 4  5PM at Science Center, Hall D 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
JACK HUIZENGA (HARVARD UNIVERSITY) 
Hilbert schemes of points, vector bundles, polynomial multiplication, and the golden ratio 

September 20, 2011, 3 PM at MIT (2146) 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
SASHA TSYMBALYUK () 
Structure of Category O 

September 20, 2011, 530 pm at MIT (2190) 
BASIC NOTIONS SEMINAR 
DENNIS GAITSGORY (HARVARD UNIVERSITY) 
Contractibility of the space of rational maps 

September 19, 2011, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
JONATHAN BLOOM (MIT) 
Floer homology with boundary 

September 16, 2011, 330 PM at Science Center, Room 507 
THE THURSDAY SEMINAR 
DAVID KAZHDAN (HARVARD UNIVERSITY) 
Background on quantum field theory 

September 15, 2011, 3  5 PM at Science Center, Room 507 
NUMBER THEORY SEMINAR 
KEERTHI MADAPUSI (HARVARD UNIVERSITY) 
The padic comparison isomorphism for abelian varieties via Dieudonne theory for log 1motifs 

September 14, 2011, 3  4 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
CLIFFORD EARLE (CORNELL UNIVERSITY) 
Holomorphic coordinates on Teichmueller space and compactified moduli space 

September 14, 2011, 430 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
VIVEK SHENDE (MIT) 
On Severi degrees 

September 13, 2011, 3 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR ON GEOMETRIC REPRESENTATION THEORY 
DAVID KAZHDAN (HARVARD UNIVERSITY) 
Representations of KacMoody algebras and modules over quantum groups overview of the theory 

September 13, 2011, 530 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
JOE HARRIS (HARVARD UNIVERSITY) 
BrillNoether theory 

September 12, 2011, 3  430 PM at Science Center, Room 507 
THE THURSDAY SEMINAR 
MIKE HOPKINS (HARVARD UNIVERSITY) 
The 3category of conformal nets background and topological motivation 

September 08, 2011, 35pm at Science Center, Room 507 
GEOMETRY AND DYNAMICS SEMINAR 
SARAH KOCH (HARVARD UNIVERSITY) 
Twisted Matings of Polynomials 

September 07, 2011, 430 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
DANIEL MATHEWS () 
Sutured Floer homology and TQFT 

May 13, 2011, 330 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
CURT MCMULLEN (HARVARD UNIVERSITY) 
Manifolds, topology and dynamics 

May 11, 2011, 4 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
VERA VERTESI () 
Transverse invariants in Heegaard Floer homology 

May 06, 2011, 330 PM at Science Center, Room 507 
COLLOQUIUM 
FLORIAN POP (UNIVERSITY OF PENNSYLVANIA) 
On the Ihara/OdaMatsumoto Conjecture 

May 05, 2011, 430 pm at Science Center, Hall D 
RANDOM MATRIX AND PROBABILITY SEMINARS 
IVAN CORWIN (COURANT INSTITUTE NYU) 
Harmonic analysis of the geometric (tropical) RSK correspondence via Whittaker functions 

May 05, 2011, 3 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
TASHO KALETHA (IAS) 
Simple wild Lpackets 

May 04, 2011, 3  4 PM at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
MARTIN OLSON (UC BERKELEY) 
BorelMoore homology, cycle maps, and local terms in etale cohomology 

May 03, 2011, 3 pm at MIT (2142) 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
VLADIMIR LAZIC (IMPERIAL COLLEGE, LONDON) 
The MMP revisited 

May 03, 2011, 4 pm at MIT (2142) 
RANDOM MATRIX AND PROBABILITY SEMINARS 
JEREMY QUASTEL (UNIVERSITY OF TORONTO) 
Exact formulas in random growth and directed polymers 

May 02, 2011, 1030 am at Science Center, Room 232 
GAUGE THEORY AND TOPOLOGY 
JACOB RASMUSSEN (UNIVERSITY OF CAMBRIDGE, AND SIMONS CENTER FOR GEOMETRY AND PHYSICS) 
Khovanov homology of torus knots 

April 29, 2011, 11 am at Science Center, Room 507 
THE THURSDAY SEMINAR 
JACOB LURIE (HARVARD UNIVERSITY) 
The Chain Rule (Continued) 

April 28, 2011, 3 pm at Science Center, Room 507 
SPECIAL NUMBER THEORY SEMINAR 
JEANMARC FONTAINE (UNIVERSITE' DE PARISSUD) 
padic Galois representations and vector bundles on curves 

April 28, 2011, 3  4 pm at Science Center, Room 309A 
GEOMETRY AND DYNAMICS SEMINAR 
MOON DUCHIN () 
Flat structures as currents 

April 27, 2011, 4 pm at Science Center, Room 507 
SPECIAL SEMINAR 
PAUL HORN (EMORY UNIVERSITY) 
Random Processes on Graphs 

April 27, 2011, 3  4 pm at Science Center, Room 530 
NUMBER THEORY SEMINAR 
ZHIWEI YUN (MIT) 
Simple Lie groups as motivic Galois groups 

April 27, 2011, 3 PM at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
QILE CHEN (BROWN UNIVERSITY) 
Stable logarithmic maps to DeligneFaltings pairs 

April 26, 2011, 3 pm at MIT (2142) 
DIFFERENTIAL GEOMETRY SEMINAR 
LONGZHI LIN (JOHN HOPKINS UNIVERSITY) 
Modified mean curvature flow of starshaped hypersurfaces in hyperbolic space 

April 26, 2011, 130300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
() 
There is no Basic Notions Seminar this week. 

April 25, 2011, at 
GAUGE THEORY AND TOPOLOGY 
CHRIS WOODWARD (RUTGERS UNIVERSITY) 
Quilted Floer theory and fibered Dehn twists 

April 22, 2011, 330 pm at Science Center, Room 507 
SPECIAL NUMBER THEORY SEMINAR 
JEANMARC FONTAINE (UNIVERSITE' DE PARISSUD) 
padic Galois representations and vector bundles on curves 

April 21, 2011, 3  4 pm at Science Center, Room 309A 
THE THURSDAY SEMINAR 
JACOB LURIE (HARVARD UNIVERSITY) 
The Chain Rule in the Calculus of Functors 

April 21, 2011, 3 pm at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
A. AUFFINGER (NYU) 
Landscape of random function on many variables via Random Matrix Theory 

April 21, 2011, 4 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
ALEXANDER A BEILINSON (UNIVERSITY OF CHICAGO) 
i padic periods and derived de Rham cohomology 

April 20, 2011, 3  4 pm at Science Center, Room 507 
GEOMETRY AND DYNAMICS SEMINAR 
NATHAN DUNFIELD (UNIVERSITY OF ILLINOIS, URBANACHAMPAIGN) 
The least spanning area of a knot and the Optimal Bounding Chain Problem 

April 20, 2011, 4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
FREDERICK DENEF (HARVARD PHYSICS DEPARTMENT) 
Black hole bound states 

April 19, 2011, 130  300 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
ALEXANDER A BEILINSON (UNIVERSITY OF CHICAGO) 
padic Periods and Derived de Rham Cohomology 

April 19, 2011, 3 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
MIRANDA CHENG (HARVARD UNIVERSITY) 
The sporadic group M24 and (Mock) Automorphic forms 

April 18, 2011, 3 pm at Science Center, Room 507 
SPECIAL NUMBER THEORY SEMINAR 
TOMER SCHLANK (HEBREW UNIVERSITY OF JERUSALEM) 
Relative Homotopy type and Diophantine Equations/PLEASE NOTICE THE CHANGE IN PLACE AND TIME 

April 15, 2011, 1 pm at Science Center, Room 309 
GAUGE THEORY AND TOPOLOGY 
() 
There is no Gauge Theory Seminar this week. 

April 15, 2011, at 
THE THURSDAY SEMINAR 
MIKE HOPKINS (HARVARD UNIVERSITY) 
The Tits building and the partition complex, after AroneDwyer, II 

April 14, 2011, 3  5 PM at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
() 
There is no Random Matrix Seminar this week. 

April 14, 2011, at 
SPECIAL NUMBER THEORY SEMINAR 
JEANMARC FONTAINE (UNIVERSITE' DE PARISSUD) 
padic Galois representations and vector bundles on curves 

April 14, 2011, 3  4 PM at Science Center, Room 309A 
BRANDIESHARVARDMITNORTHEASTERN JOINT MATHEMATICS COLLOQUIUM 
THOMAS HAINES (MARYLAND/IAS) 
Endoscopic transfer of the Bernstein center 

April 14, 2011, 430 pm at Science Center, Hall D 
NUMBER THEORY SEMINAR 
THOMAS J. HAINES (UNIVERSITY OF MARYLAND AT COLLEGE PARK) 
Test functions for Shimura varieties with arbitrary level 

April 13, 2011, 3  4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
GABOR LIPPNER (HARVARD UNIVERSITY) 
Quantum Tunneling on Graphs 

April 12, 2011, 130 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
JOE RABINOFF (HARVARD UNIVERSITY) 
Implicitization via harmonic analysis on graphs, nonArchimedean analytic curves, and tropicalization 

April 11, 2011, 3 pm at Science Center, Room 507 
SPECIAL SEMINAR 
HEPING HE (UNIVERSITY OF KANSAS) 
Asymptotic properties of maximum likelihood estimators in models with multiple change points 

April 11, 2011, 2 pm at Science Center, Room 530 
GAUGE THEORY AND TOPOLOGY 
BASAK GUREL (VANDERBILT) 
Conley conjecture for negative monotone symplectic manifolds 

April 08, 2011, 330 pm at Science Center, Room 507 
LOGIC COLLOQUIUM 
BJORN POONEN (MIT) 
Diophantine subsets of rational numbers 

April 08, 2011, 4 pm at Science Center, Room 309 
THE THURSDAY SEMINAR 
ROBIN KOYTCHEFF () 
Orthogonal Calculus (part 2) 

April 07, 2011, 3  5 PM at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
R. KENYON (BROWN UNIVERSITY) 
Dimers and integrability 

April 07, 2011, 3 pm at Science Center, Room 232 
SPECIAL NUMBER THEORY SEMINAR 
JEANMARC FONTAINE (UNIVERSITE' PARISSUD) 
$p$adic Galois representations and vector bundles on curves 

April 07, 2011, 3  4 pm at Science Center, Room 221 
NUMBER THEORY SEMINAR 
DANIEL KANE (HARVARD UNIVERSITY) 
Presentations for DeligneLusztig Curves 

April 06, 2011, 3 PM at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
DANIEL GREB (ALBERTLUDWIGSUNIVERSITAT FREIBURG) 
Lagrangian fibrations on hyperkahler manifolds 

April 05, 2011, 3 pm at MIT (2142) 
DIFFERENTIAL GEOMETRY SEMINAR 
STEFAN ROSEMANN (INSTITUTE OF MATHEMATICS OF THE UNIVERSITY OF JENA (GERMANY)) 
YanoObata conjecture for holomorphprojective transformations 

April 05, 2011, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
LISHENG TSENG (HARVARD UNIVERSITY) 
Similarities between complex and symplectic analysis 

April 04, 2011, 3 PM at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
MICHAEL USHER (UNIVERSITY OF GEORGIA) 
Boundary depth and the Hofer norm 

April 01, 2011, 330  430 PM at Science Center, Room 507 
THE THURSDAY SEMINAR 
ROBIN KOYTCHEFF () 
Orthogonal Calculus/PLEASE NOTE THE CHANGE OF LOCATION 

March 31, 2011, 3  5 pm at Science Center, Room 309 
RANDOM MATRIX AND PROBABILITY SEMINARS 
NICK PATTERSON (BROAD INSTITUTE) 
Large Matrices and Genetic. PLEASE NOTICE THE CHANGE IN TIME AND PLACE. 

March 31, 2011, 4 pm at Science Center, Room 309 a 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
JESSE KASS (UNIVERSITY OF MICHIGAN) 
The local structure of the compactified Jacobian 

March 29, 2011, 3 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
HONGNIAN HUANG (CIRGET UNIVERSITY OF QUEBEC AT MONTREAL) 
Symmetries of extremal metrics on projective bundles and stability. PLEASE NOTICE THE CHANGE IN TIME. 

March 29, 2011, 1  2 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
JACOB LURIE (HARVARD UNIVERSITY) 
Tamagawa Numbers Via Nonabelian Poincare Duality 

March 28, 2011, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
PETER ALBERS (PURDUE UNIVERSITY) 
A variational approach to Givental's nonlinear Maslov index 

March 25, 2011, 330  430 pm at Science Center, Room 507 
LOGIC COLLOQUIUM 
HARVEY M. FRIEDMAN () 
Algorithmic Unsolvability in Euclidean Geometry 

March 25, 2011, 4  530 PM at Science Center, Room 309 
RANDOM MATRIX AND PROBABILITY SEMINARS 
M. ADLER (BRANDEIS UNIVERSITY) 
Dyson's Brownian motions and critical diffusions 

March 24, 2011, 3 pm at Science Center, Room 232 
THE THURSDAY SEMINAR 
ALEXANDER BERGLUND (UNIVERSITY OF COPENHAGEN) 
Minimal Koszul Models 

March 24, 2011, 3  5 pm at Science Center, Room 507 
JOINT BRANDEISHARVARDMIT NORTHEASTERN MATHEMATICS COLLOQUIUM 
MATILDE MARCOLLI (CALTECH UNIVERSITY) 
Quantum statistical mechanics and anabelian geometry 

March 24, 2011, 430 pm at Science Center, Hall D 
NUMBER THEORY SEMINAR 
DANIEL KANE (HARVARD UNIVERSITY) 
Ranks of 2Selmer Groups of Twists of an Elliptic Curve 

March 23, 2011, 3  4 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
JOHN HUBBARD (CORNELL UNIVERSITY) 
On the density of Strebel differentials 

March 23, 2011, 4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
WENXUAN LU (MIT) 
Instanton Correction, Wall Crossing and Mirror Symmetry of Hitchin's Moduli Spaces 

March 22, 2011, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
LASZLO ERDOS (UNIVERSITY OF MUNICH) 
Large atoms and molecules in a selfgenerated magnetic field 

March 21, 2011, 3 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
MARK BEHRENS () 
Derivatives of the identity, ctd 

March 10, 2011, 3  5 pm at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
T. AUSTIN (BROWN UNIVERSITY) 
Some recent advances in Multiple Recurrence 

March 10, 2011, 3 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
ABHINAV KUMAR (MIT) 
K3 surfaces and Hilbert modular surfaces 

March 09, 2011, 3  4 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
STEFFEN MARCUS (BROWN UNIVERSITY) 
Polynomial Families of Tautological Classes on the Moduli Space of Curves 

March 08, 2011, 3 pm at Science Center, Room 507 
SPECIAL SEMINAR 
GREGG ZUCKERMAN (YALE UNIVERSITY) 
Modeling the mind with nonwell founded set theory. Please note the change in time. 

March 08, 2011, 415 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
VAIBHAV SURESH GADRE (HARVARD UNIVERSITY) 
Bounds for minimal pseudoAnosov translation lengths in the complex of curves 

March 04, 2011, 330  430 PM at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
J. DING (BERKELEY) 
Cover times, blanket times, and the Gaussian free field 

March 03, 2011, 3 pm at Science Center, Room 232 
THE THURSDAY SEMINAR 
MIKE HOPKINS (HARVARD UNIVERSITY) 
Symmetric powers and the Steinberg module (after MitchellPriddy and AroneDwyer) 

March 03, 2011, 3  5 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
WEI ZHANG (HARVARD UNIVERSITY) 
Fourier transform, period and Lfunction 

March 02, 2011, 3  4 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
MIRCEA MUSTATA (UNIVERSITY OF MICHIGAN) 
Invariants of singularities in zero and positive characteristic 

March 01, 2011, 3 pm at MIT (2142) 
DIFFERENTIAL GEOMETRY SEMINAR 
CHRISTINA SORMANI (CUNY GC AND LEHMAN COLLEGE) 
Applications of Intrinsic Flat Convergence 

March 01, 2011, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
RACHEL LOUISE EPSTEIN (HARVARD UNIVERSITY) 
The Structure of the Computably Enumerable Sets 

February 28, 2011, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
EDWARD WITTEN () 
Khovanov Homology and Gauge Theory 

February 25, 2011, 330  430 PM at Science Center, Hall C 
THE THURSDAY SEMINAR 
MARK BEHRENS () 
Derivatives of the identity 

February 24, 2011, 3  5 PM at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
() 


February 24, 2011, at 
NUMBER THEORY SEMINAR 
WUSHI GOLDRING (HARVARD UNIVERSITY) 
Galois representations associated to holomorphic limits of discrete series 

February 23, 2011, 3  4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
SI LI (HARVARD UNIVERSITY) 
Higher genus Bmodel on the elliptic curve and almost holomorphic modular forms 

February 22, 2011, 130  300 PM at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
CHENYANG XU (MIT) 
Boundaries of Algebraic Varieties 

February 22, 2011, 3  4 PM at MIT (2142) 
DIFFERENTIAL GEOMETRY SEMINAR 
() 
There will be no seminar due to President's Day 

February 21, 2011, at 
GAUGE THEORY AND TOPOLOGY 
STEVEN SIVEK () 
A bordered ChekanovEliashberg algebra 

February 18, 2011, 330  430 PM at Science Center, Room 507 
THE THURSDAY SEMINAR 
DAVID AYALA (HARVARD UNIVERSITY) 
Embedding calculus again 

February 17, 2011, 3  5 pm at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
LIONEL LEVINE (MIT) 
Logarithmic fluctuations from circularity 

February 17, 2011, 3 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
NOAM ELKIES (HARVARD UNIVERSITY) 
Refined 3adic approximations to j(nζ_{3}) 

February 16, 2011, 3  4pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
YAKAR KANNAI (WEIZMANN INSTITUTE OF SCIENCE) 
Kernels associated with second order operators, SubRiemannian geometry, and special functions 

February 15, 2011, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
GABOR LIPPNER (HARVARD UNIVERSITY) 
Eigenvalue multiplicity and the genus of graphs 

February 14, 2011, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
JAMES PASCALEFF () 
Floer cohomology in the mirror of CP^2 relative to a conic and a line 

February 11, 2011, 330  430 PM at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
ALEXEI BORODIN (MIT) 
Growth of random surfaces 

February 10, 2011, 3 pm at Science Center, Room 232 
THE THURSDAY SEMINAR 
TOM GOODWILLIE () 
Tangent Bundle Analogy (continued) 

February 10, 2011, 3  5 PM at Science Center, Room 507 
NUMBER THEORY SEMINAR 
DAVID ROE (HARVARD UNIVERSITY) 
The Local Langlands Correspondence for Tamely Ramified Groups 

February 09, 2011, 3  4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
YUJONG TZENG (HARVARD UNIVERSITY) 
Counting singular curves on surfaces 

February 08, 2011, 130  300 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
AMNON YEKUTIELI (BEN GURION UNIVERSITY) 
Central Extensions of Gerbes 

February 08, 2011, 3 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
CHENYU CHI (HARVARD UNIVERSITY) 
Singularities of hypersurfaces and the image of pluricanonical maps  a metrical approach 

February 07, 2011, 3 pm at Science Center, Room 507 
SPECIAL SEMINAR 
MARIA ALESSANDRA RAGUSA (UNIVERSITA DI CATANIA) 
Current regularity problems of Partial Differential Equations 

February 04, 2011, 430 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
SERGEY CHERKIS () 
YangMills Instantons on Asymptotically Locally Flat Spaces and their Moduli Spaces 

February 04, 2011, 330  430 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
TOM GOODWILLIE () 
More on the calculus of functors 

February 03, 2011, 3  5pm at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
SCOTT SHEFFIELD (MIT) 
How do you divide your (two dimensional) time? Zippers, necklaces, and quantum gravity 

February 03, 2011, 3 PM at Science Center, Room 232 
NUMBER THEORY SEMINAR 
NOAM ELKIES (HARVARD UNIVERSITY) 
Refined 3adic approximations to j(nζ_{3}) 

February 02, 2011, 3  4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
ANDREW STROMINGER (HARVARD UNIVERSITY) 
From NavierStokes to Einstein 

February 01, 2011, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
LARS ANDERSSON (ALBERT EINSTEIN INSTITUTE) 
The black hole stability problem 

January 31, 2011, 3 pm at Science Center, Room 507 
SPECIAL ALGEBRAIC GEOMETRY SEMINAR 
JASON STARR (S.U.N.Y.) 
Rational points and rational simple connectedness for hypersurfaces in Grassmannians. 

January 28, 2011, 3 PM at Science Center, Room 507 
NUMBER THEORY SEMINAR 
PAUL BAUM (PENN STATE UNIVERSITY) 
Geometric structure in the representation theory of reductive padic groups 

January 26, 2011, 3 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
SERGEI GUKOV (UNIVERSITY OF CALIFORNIA, SANTA BARABARA) 
The Verlinde formula via mirror symmetry 

January 25, 2011, 130  300 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
YANKI LEKILI (MIT) 
Fukaya categories of the torus and Dehn surgery on 3manifolds 

December 03, 2010, 330  430 pm at Science Center, Room 507 
SPECIAL SEMINAR 
JOHN LOFTIN (RUTGERS UNIVERSITY) 
Minimal Lagrangian Surfaces in $\mathbb{CH}^2$ 

December 03, 2010, 430  530 pm at Science Center, Room 530 
SPECIAL SEMINAR 
LYDIA BIERI (UNIVERSITY OF MICHIGAN) 
Geometry of Spacetimes Solving the EinsteinMaxwell Equations in general Relativity and Gravitational Radiation 

December 02, 2010, 3  4 pm at Science Center, Room 530 
NUMBER THEORY SEMINAR 
EUGEN HELLMANN (BONN UNIVERSITY) 
On families of filtered phimodules and crystalline representations 

December 01, 2010, 3  4 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
D. MEYER () 
Invariant Peano curves of expanding Thurston maps. 

December 01, 2010, 4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
MINGTAO CHUAN (HARVARD UNIVERSITY) 
Existence of HermitianYangMills connections under conifold transitions 

November 30, 2010, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
HORNGTZER YAU (HARVARD UNIVERSITY) 
Random matrices a review of its history and the conjectures by Wigner and Dyson 

November 29, 2010, 3 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
XINWEN ZHU (HARVARD UNIVERSITY) 
Determinants, commutators, and the reciprocity laws 

November 22, 2010, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
CHRIS WOODWARD (RUTGERS UNIVERSITY) 
Quilted Floer theory and fibered Dehn twists 

November 19, 2010, 330 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
KIRSTEN WICKELGREN (HARVARD UNIVERSITY) 
Homotopy Nilpotent Groups 

November 18, 2010, 4  6 PM at Science Center, Room 507 
COLLOQUIUM 
EYAL GOREN (MCGILL UNIVERSITY) 
Recent developments in the theory of complex multiplication 

November 18, 2010, 430 pm at Science Center, Hall E 
SPECIAL SEMINAR 
QILE CHEN (BROWN UNIVERSITY) 
Logarithmic stable maps to DeligneFaltings pairs 

November 18, 2010, 530 pm at Science Center, Room 530 
NUMBER THEORY SEMINAR 
EYAL GOREN (MCGILL UNIVERSITY) 
Curves of genus 2 with complex multiplication 

November 17, 2010, 3  4 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
GIULIO TIOZZO (HARVARD UNIVERSITY) 
Continued fractions and kneading sequences of unimodal maps 

November 17, 2010, 4 pm at Science Center, Room 507 
LOGIC COLLOQUIUM 
HUGH WOODIN (UC BERKELEY) 
The Search for Mathematical Truth 

November 17, 2010, 4  530 PM at Fong Auditorium, Boylston Hall 110 
ADDITIONAL DIFFERENTIAL GEOMETRY SEMINAR 
MICHAEL EICHMAIR (MIT) 
Large isoperimetric surfaces in initial data sets 

November 16, 2010, 430 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
HELENE ESNAULT () 
Lifting of cycle class in crystalline cohomology 

November 16, 2010, 3 pm at MIT (26310) 
DIFFERENTIAL GEOMETRY SEMINAR 
MIRANDA CHENG (HARVARD UNIVERSITY) 
K3 surfaces and a Moonshine for Mathieu 24 

November 16, 2010, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
VAIBHAV SURESH GADRE (HARVARD UNIVERSITY) 
Length spectra for pseudoAnosov maps bounds for low dilatation examples 

November 15, 2010, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
SEN HU (USTC) 
On a generalization of the Ricci flow 

November 12, 2010, 330  430 pm at Science Center, Room 507 
LOGIC COLLOQUIUM 
GERALD SACKS (HARVARD UNIVERSITY) 
Models of Long Sentences II 

November 12, 2010, 4  530 pm at Science Center, Room 309 
THE THURSDAY SEMINAR 
DAVID AYALA (HARVARD UNIVERSITY) 
The Embedding Calculus 

November 11, 2010, 4  6 PM at Science Center, Room 507 
NUMBER THEORY SEMINAR 
ANDREW OBUS (COLUMBIA UNIVERSITY) 
Lifting Cyclic Extensions 

November 10, 2010, 3  4 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
RAGNI PIENE (UNIVERSITY OF OSLO) 
Inflection loci of projective varieties 

November 09, 2010, 3 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
HELENE ESNAULT (UNIVERSITAT DUISBERGESSEN) 
Fundamental groups and connections 

November 09, 2010, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
HELENE ESNAULT (UNIVERSITAT DUISBERGESSEN) 
Rational points and motivic integration 

November 08, 2010, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
TIM NGUYEN (MIT) 
The SeibergWitten Equations on Manifolds with Boundary 

November 05, 2010, 330  430 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
SOREN GALATIUS () 
Homology of moduli spaces of manifolds 

November 04, 2010, 4  530 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
NIR AVNI (HARVARD UNIVERSITY) 
Representations Zeta Functions of Arithmetic Groups 

November 03, 2010, 3  4 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
EVA UHRE () 
The Mandelbrot set and its deformations 

November 03, 2010, 4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
DEMETRIOS CHRISTODOULOU (ETH ZURICH) 
The formation of black holes in vacuum 

November 02, 2010, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
PAUL BOURGADE (HARVARD UNIVERSITY) 
Extreme spacings in random spectra 

November 01, 2010, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
PETER OZSVATH (MIT) 
Bordered Floer homology and the spectral sequence of a branched doublecover 

October 29, 2010, 330  430 pm at Science Center, Room 507 
LOGIC COLLOQUIUM 
RACHEL LOUISE EPSTEIN (HARVARD UNIVERSITY) 
Definability in the Computably Enumerable Sets 

October 29, 2010, 4  6 pm at Science Center, Room 309 
BRANDIESHARVARDMITNORTHEASTERN JOINT MATHEMATICS COLLOQUIUM 
SIMON BRENDLE (STANFORD UNIVERSITY) 
Curvature, sphere theorems, and the Ricci flow 

October 28, 2010, 430 PM at Science Center, Hall A 
LOGIC COLLOQUIUM 
CAMERON FREER (UNIVERSITY OF HAWAII) 
Invariant measures on countable models 

October 27, 2010, 400 pm at Science Center, Room 113 
NUMBER THEORY SEMINAR 
HUI JUNE ZHU (SUNY BUFFALO/HARVARD) 
Construction of crystalline representations in families and generalized Serre weights 

October 27, 2010, 3  4 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
XAVIER BUFF () 
Transversality for Herman rings 

October 27, 2010, 4 pm at Science Center, Room 507 
SPECIAL SEMINAR 
ERIC VERLINDE (UNIVERSITY OF AMSTERDAM) 
Counting Dyons, Wall Crossing, and Borcherds Algebra 

October 26, 2010, 130 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
MICHAEL RAPOPORT (HARVARD UNIVERSITY) 
Occult period maps 

October 26, 2010, 3  4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
VINCENT MONCRIEF (YALE UNIVERSITY) 
Einstein spaces as attractors for the Einstein flow 

October 26, 2010, 500 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
PETER KRONHEIMER (HARVARD UNIVERSITY) 
Knots, links and Khovanov homology 

October 25, 2010, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
STAVROS GAROUFALIDIS (GEORGIA TECH) 
The Slope Conjecture 

October 22, 2010, 330  430 pm at Science Center, Room 507 
SPECIAL SEMINAR 
ALEXANDER GRIGORYAN (UNIVERSITAET BIELEFELD) 
Exterior differentiations on graphs (work in progress) 

October 21, 2010, 3  4 pm at Science Center, Room 530 
THE THURSDAY SEMINAR 
DUSTIN CLAUSEN () 
The Taylor tower of the stabilization of mapping spaces (after Greg Arone) 

October 21, 2010, 4  6 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
JOEL BELLAICHE (BRANDEIS UNIVERSITY) 
Critical padic Lfunctions 

October 20, 2010, 3  4 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
R. ROEDER () 
Blaschke products ad renormalization on the diamond hierarchical lattice. 

October 20, 2010, 4PM at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
DUILIU DIACONESCU (RUTGERS UNIVERSITY) 
Wallcrossing and Cohomology of The Hitchin System 

October 19, 2010, 3 pm at MIT (26310) 
DIFFERENTIAL GEOMETRY SEMINAR 
WILLIAM MEEKS (UNIVERSITY OF MASSACHUSETTS, AMHERST) 
Constant mean curvature sphere in homogeneou 3manifolds 

October 19, 2010, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
BENEDICT GROSS (HARVARD UNIVERSITY) 
Automorphisms of root lattices 

October 18, 2010, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
MOHAMMED ABOUZAID (MIT) 
A plethora of exotic Stein manifolds 

October 15, 2010, 330  430 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
JACOB LURIE (HARVARD UNIVERSITY) 
More on the Goodwillie derivative of the identity 

October 14, 2010, 4  6 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
DICK GROSS (HARVARD UNIVERSITY) 
Parahorics and supercuspidal representations 

October 13, 2010, 3  4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
LISHENG TSENG (HARVARD UNIVERSITY) 
Primitive elliptic operators on symplectic manifolds 

October 12, 2010, 130  300 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
KEVIN TUCKER (UNIVERSITY OF UTAH) 
On the behavior of multiplier ideals and test ideals under finite morphisms in positive characteristic 

October 12, 2010, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
GENEVIEVE WALSH (TUFTS) 
Knot commensurability and the Berge conjecture 

October 08, 2010, 330  430 pm at Science Center, Room 507 
LOGIC COLLOQUIUM 
THEODORE A. SLAMAN () 
Randomness and Mathematical Logic 

October 08, 2010, 4  6 pm at Science Center, Room 309 
THE THURSDAY SEMINAR 
MARK BEHRENS () 
The Goodwillie tower of the Identity 

October 07, 2010, 4  545 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
VAIBHAV GADRE (HARVARD UNIVERSITY) 
Singularity of harmonic measures for random walks on the mapping class group. 

October 06, 2010, 4 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
BJORN POONEN (MIT) 
Random maximal isotropic subspaces and Selmer groups 

October 06, 2010, 3  4 PM at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
JACOB LURIE (HARVARD UNIVERSITY) 
Tamagawa Numbers via Nonabelian Poincare Duality 

October 05, 2010, 3  4 pm at MIT (26310) 
DIFFERENTIAL GEOMETRY SEMINAR 
XIAOTAO SUN (INSTITUTE OF MATHEMATICS, CHINESE ACADEMY OF SCIENCES) 
Minimal rational curves on moduli spaces of stable bundles 

October 05, 2010, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
MICHAEL RAPOPORT (MATHEMATICAL INSTITUTE, UNIVERSITY OF BONN) 
Period domains over finite and padic fields 

October 04, 2010, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
MARK McLEAN () 
The growth rate of symplectic homology and algebraic Stein fillings 

October 01, 2010, 330  430 PM at Science Center, Room 507 
THE THURSDAY SEMINAR 
TOM GOODWILLIE () 
Overview of the calculus of functors, continued 

September 30, 2010, 4  6 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
THOMAS KOBERDA (HARVARD UNIVERSITY) 
A pingpong theorem for the mappingclass group. 

September 29, 2010, 4 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
CHARLES SAMUELS (UNIVERSITY OF BRITISH COLUMBIA) 
Polynomials whose reducibility is connected to the Goldbach conjecture 

September 29, 2010, 3  4 PM at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
SI LI (HARVARD UNIVERSITY) 
BCOV theory on elliptic curve and higher genus mirror symmetry 

September 28, 2010, 130  300 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
DAWEI CHEN (UNIVERSITY OF ILLINOIS AT CHICAGO) 
Geometry of Teichmuller curves 

September 28, 2010, 3 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
JOE HARRIS (HARVARD UNIVERSITY) 
Galois Groups in Geometry 

September 27, 2010, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
VLADIMIR CHERNOV () 
Causality, Low conjecture and the partial order on the space of Legendrian spheres 

September 24, 2010, 330  430 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
() 


September 23, 2010, 4 9 6 PM at Science Center, Room 507 
NUMBER THEORY SEMINAR 
YIFENG LIU (COLUMBIA UNIVERSITY) 
MongeAmpère equation in nonArchimedean geometry 

September 22, 2010, 3  4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
MARK HASKINS (IMPERIAL COLLEGE, LONDON) 
Exceptional holonomy and calibrated submanifolds 

September 21, 2010, 1230  200 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
STEFAN KEBEKUS (MIT) 
Positivity properties of differentials, the minimal model program, and hyperbolicity of moduli stacks 

September 21, 2010, 3  4 PM at MIT (26310) 
BASIC NOTIONS SEMINAR 
CURT MCMULLEN (HARVARD UNIVERSITY) 
The Evolution of Geometric Structures on 3 Manifolds 

September 20, 2010, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
ELISENDA GRIGSBY (BOSTON COLLEGE) 
On Khovanov homology, Heegaard Floer homology, and Gluing 

September 17, 2010, 330  430 pm at Science Center, Room 507 
INFORMAL SEMINAR 
MORITZ GROTH (BONN) 
Introduction to Grothendieck's Derivators II 

September 16, 2010, 2  4 pm at Science Center, Room 232 
THE THURSDAY SEMINAR 
TOM GOODWILLIE () 
Overview of the calculus of functors, ctd 

September 16, 2010, 4  6 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
LAURA DE MARCO (UIC) 
Dynamics of cubic polynomials and enumeration of cusps 

September 15, 2010, 4 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
PETER SCHOLZE (BONN) 
A new approach to the Local Langlands Correspondence for GL_n over padic fields 

September 15, 2010, 3  4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
BAOSEN WU () 
Diskcounting of toric CalabiYau and mirror symmetry 

September 14, 2010, 130  300 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
ABHINAV KUMAR () 
All the elliptic fibrations on a generic Jacobian Kummer surface 

September 14, 2010, 3 4 pm at Science Center, Room 507 
INFORMAL SEMINAR 
MORITZ GROTH (BONN) 
Introduction to Grothendieck's Derivators I 

September 14, 2010, 2  4 pm at Science Center, Room 232 
BASIC NOTIONS SEMINAR 
VARIOUS FACULTY (HARVARD UNIVERSITY) 
Job Search Seminar 

September 13, 2010, 3 PM at Science Center, Room 507 
THE THURSDAY SEMINAR 
TOM GOODWILLIE () 
Overview of the calculus of functors 

September 09, 2010, 4  6 pm at Science Center, Room 507 
INFORMAL SEMINAR 
ROBION KIRBY (UC BERKELEY) 
A new calculus for 4manifolds 

September 08, 2010, 45pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
MICHAEL RAPOPORT (BONN) 
Algebraic cycles on Picard moduli spaces of abelian varieties 

September 08, 2010, 3  4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
JUERGEN JOST (MAX PLANCK INSTITUTE FOR MATHEMATICS IN THE SCIENCES) 
The Bernstein problem for minimal hypersurfaces 

September 07, 2010, 130  300 pm at Science Center, Room 507 
SPECIAL SEMINAR 
RYUSHI GOTO (OSAKA UNIVERSITY) 
Generalized Kahler and CalabiYau structures on crepant resolutions of SasakiEinstein cones 

May 25, 2010, 2330 PM at Science Center, Room 507 
NUMBER THEORY SEMINAR 
BJORN POONEN (MIT) 
NeronSeveri groups under specialization 

May 12, 2010, 3  4 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
GIORGIA FORTUNA () 
Conformal blocks and Dmodules on Bun(G) 

May 11, 2010, 530 PM at MIT (2190) 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
BJORN POONEN (MIT) 
NeronSeveri groups under specialization 

May 11, 2010, 3 pm at MIT (26142) 
THE THURSDAY SEMINAR 
MIKE HOPKINS (HARVARD UNIVERSITY) 
Reduction of the rigidity theorem to Gm 

May 06, 2010, 330  5 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
PASCAL BOYER (INSTITUTE DE MATHEMATIQUES DE JUSSIEU ) 
Cohomology of some local and global Shimura varieties 

May 05, 2010, 3  4 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
MAX LIEBLICH (UNIVERSITY OF WASHINGTON) 
Moduli spaces of sheaves and an effective version of Merkurjev's theorem 

May 04, 2010, 3 pm at MIT (26142) 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
NICK ROZENBLYUM & GIORGIA FORTUNA () 
Title 1 Chiral AlgebrasIII. Title 2 Coinvariants, and how chiral module give rise to Dmodules on Bun (G) 

May 04, 2010, 545 PM at MIT (2190) 
NUMBER THEORY SEMINAR 
PHAM TIEP (UNIVERSITY OF ARIZONA) 
Representations of finite simple groups and applications 

April 28, 2010, 3  4 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
NICK ROZENBLYUM () 
Chiral algebrasII 

April 27, 2010, 530  800 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
PAUL HACKING (UNIVERSITY OF MASSACHUSETTS, AMHERST) 
Mirror Symmetry and deformations of surface singularities 

April 27, 2010, 330 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
YAKOV ELIASHBERG (STANFORD UNIVERSITY) 
Symplectic geometry of Stein manifolds 

April 23, 2010, 330  430 pm at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
DONG WANG (MICHIGAN) 
Hermitian matrix model with spiked external source 

April 22, 2010, 310 pm at Science Center, Room 232 
THE THURSDAY SEMINAR 
ANATOLY PREYGEL (MIT) 
More on motivic cobordism and HZ 

April 22, 2010, 3  5 PM at Science Center, Room 507 
NUMBER THEORY SEMINAR 
GLENN STEVENS (HARVARD UNIVERSITY) 
Eigenvarieties and a Conjecture of Urban 

April 21, 2010, 3  4 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
ANDREI NEGUT AND NICK ROZENBLYUM () 
I Proof of the Hecke eigenproperty. II Introduction to chiral algebras 

April 20, 2010, 530  800 pm at MIT (2190) 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
RAGNI PIENE (UNIVERSITY OF OSLO) 
Inflection loci of projective varieties 

April 20, 2010, 330 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
KRISTEN WICKELGREN (HARVARD UNIVERSITY) 
Grothendieck's Anabelian Conjectures 

April 19, 2010, 3 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
EREZ LIEBERMANAIDEN (HARVARD & MIT) 
Physical Analogues of Peano Curves the folding principles of the human genome 

April 16, 2010, 230  330 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
DAN FREED (UT AUSTIN) 
A differential index theorem 

April 16, 2010, 3;30  430 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
MIKE HOPKINS (HARVARD UNIVERISTY) 
Back to the FriedlanderMilnor conjecture 

April 15, 2010, 3  5 PM at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
OFER ZEITOUNI (MINNESOTA) 
Nonnormal random matrices and convergence to a ring 

April 15, 2010, 310 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
KIRAN S. KEDLAYA (MIT) 
The universal crystalline representation 

April 14, 2010, 3  4 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
KARL SCHWEDE (UNIVERSITY OF MICHIGAN) 
On the behavior of test ideals for finite separable morphisms 

April 13, 2010, 3 pm at MIT (26142) 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
ANDREI NEGUT (HARVARD UNIVERSITY) 
Action of groups on categoriesII 

April 13, 2010, 530  800 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
SARAH KOCH (HARVARD UNIVERSITY) 
Thurston's topological characterization of rational functions 

April 12, 2010, 3  4 pm at Science Center, Room 507 
WORKSHOP ON GEOMETRIC STRUCTURES IN STRNG THEORY 
JOEL SMOLLER (UNIVERSITY OF MICHIGAN) 
Decay of Solutions to the Cauchy Problem for Various Physical Systems Stability of Black Holes 

April 09, 2010, 440 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
CIPRIAN MANOLESCU (UCLA) 
A combinatorial approach to fourmanifold invariants 

April 09, 2010, 330  430 pm at Science Center, Room 507 
COLLOQUIUM 
ASSAF NAOR (NYU) 
L_1 embeddings of the Heisenberg group and fast estimation of graph isoperimetery 

April 08, 2010, 430 PM at Science Center, Hall D 
RANDOM MATRIX AND PROBABILITY SEMINARS 
JEFFREY SCHENKER (MICHIGAN) 
Eigenvector Localization for Random Band Matrices With Power Law Band Width 

April 08, 2010, 310 pm at Science Center, Room 232 
SPECIAL TALK 
HARRY NUSSBAUMER (INSTITUTE OF ASTRONOMY, ETH ZURICH) 
Discovering the Expanding Universe 

April 07, 2010, 130 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
ULRICH TERSTIEGE (HARVARD UNIVERSITY) 
Local theory for special cycles on the Shimura variety of $GU(1,2)$ 

April 07, 2010, 3  4 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
ANDREW SNOWDEN (PRINCETON UNIVERSITY) 
Syzygies of Segre embeddings 

April 06, 2010, 330 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
ALEKSANDER SUBOTIC (HARVARD UNIVERSITY) 
A monoidal structure for Fukaya categories 

April 06, 2010, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
WEI ZHANG (HARVARD UNIVERSITY) 
Absolutely Hodge Cycle 

April 05, 2010, 3 pm at Science Center, Room 507 
SPECIAL NUMBER THEORY SEMINAR 
MANJUL BHARGAVA (PRINCETON UNIVERSITY) 
The average rank of elliptic curves 

April 02, 2010, 230  330 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
JOHN BALDWIN (PRINCETON UNIVERSITY) 
Contact monoids and Stein cobordisms 

April 02, 2010, 330  430 pm at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
M. HASTINGS (MICROSOFT STATION Q) 
Quasiadiabatic continuation and the Topology of Manybody Quantum Systems 

April 01, 2010, 310 pm at Science Center, Room 232 
RANDOM MATRIX AND PROBABILITY SEMINARS 
ANATOLY VERSHIK (ST. PETERSBRUG BRACH OF STEKLOV INSTITUTE AND NORTHEASTERN UNIVERSITY) 
Random matrices with the group of symmetries and classification of Gromov's triples 

March 31, 2010, 4 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
ROBERT POLLACK (BU) 
Fitting ideals of Selmer groups of modular forms 

March 31, 2010, 3  4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
KEIJI OGUISO (OSAKA UNIVERSITY) 
Some remarks on flat projective families with CalabiYau fibers 

March 30, 2010, 130  300 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
MAKSYM FEDORCHUK (COLUMBIA UNIVERSITY) 
Spaces of hyperelliptic curves with AD singularities 

March 30, 2010, 3 pm at MIT (26142) 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
SAM RASKIN (HARVARD UNIVERSITY) 
The birth of Opers II 

March 30, 2010, 530  800 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
ARTHUR OGUS () 
Logarithmic Geometry 

March 29, 2010, 3 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
JACOB LURIE (HARVARD UNIVERSITY) 
Motivic Cohomology and Chow Groups 

March 25, 2010, 3  5 PM at Science Center, Room 507 
COLLOQUIUM 
BRIAN CONRAD (STANFORD UNIVERSITY) 
Finiteness for Tamagawa numbers 

March 25, 2010, 430 pm at Science Center, Hall D 
NUMBER THEORY SEMINAR 
JIUKANG YU (HARVARD UNIVERSITY) 
MoyPrasad theory and Vinberg theory 

March 24, 2010, 3  4 pm at Science Center, Room 507 
SPECIAL SEMINAR 
C. NEWMAN (COURANT INSTITUTE NYU) 
Ising (Conformal) Fields and Cluster Area Measures 

March 23, 2010, 3 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
HAO XU (HARVARD UNIVERSITY) 
Intersection numbers from ADE singularities 

March 23, 2010, 130  3pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
SAM RASKIN () 
Hecke eigen propertyI the birth of opers 

March 23, 2010, 530  800 pm at MIT (2190) 
BASIC NOTIONS SEMINAR 
XINWEN ZHU (HARVARD UNIVERSITY) 
Integral homology of loop groups via Langlands dual groups 

March 22, 2010, 3 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
ERIC RAINS (CALIFORNIA INSTITUTE OF TECHNOLOGY) 
Moduli spaces of differential and difference equations 

March 16, 2010, 3 pm at MIT (26142) 
DIFFERENTIAL GEOMETRY SEMINAR 
MUTAO WANG (COLUMBIA UNIVERSITY) 
Lagrangian mean curvature flows and isotopy problems 

March 16, 2010, 130  300 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
BERND AMMANN (UNIVERSITAT REGNESBURG) 
A surgery formula for the smooth Yamabe invariant 

March 12, 2010, 330 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
DUSTIN CLAUSEN () 
The Conjectural Relation between HQmodules and Grothendieck's Motives 

March 11, 2010, 3  5 pm at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
EYAL LUBETZKY (MICROSOFT) 
Critical slowdown for the Ising model on the twodimensional lattice 

March 11, 2010, 310 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
A. GONCHAROV (BROWN UNIVERSITY) 
Hodge correlators and RankinSelberg integrals 

March 10, 2010, 3  4 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
JONATHAN BARLEV (HARVARD UNIVERSITY) 
OpersII 

March 09, 2010, 530  800 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
DIMA ARINKIN (UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL) 
Autoduality of Jacobians for singular curves 

March 09, 2010, 430 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
GABOR LIPPNER (HARVARD UNIVERSITY) 
Borel Oracles and parameter testing 

March 09, 2010, 130  300 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
KIRAN KEDLAYA (MIT) 
Resolution of turning points for flat meromorphic connections 

March 09, 2010, 3 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
XINYI YUAN (HARVARD UNIVERSITY) 
Preperiodic points and padic Calabi theorem 

March 08, 2010, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
EDUARDO GONZALEZ (UNIVERSITY OF MASSACHUSETTS BOSTON) 
Area dependence for gauge GromovWitten invariants 

March 05, 2010, 330  430 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
MIKE HOPKINS (HARVARD UNIVERSITY) 
The slice filtration for algebraic bordism 

March 04, 2010, 3  5 pm at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
GERARD BEN AROUS (COURANT INSTITUTE) 
Random Matrices and Complexity of Random Morse functions of many variables 

March 04, 2010, 310 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
BENOIT STROH () 
Compactification of Siegel varieties at some places of bad reduction 

March 03, 2010, 3  4 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
JONATHAN BARLEV (HARVARD UNIVERSITY) 
OpersI 

March 02, 2010, 530800 pm at MIT (2190) 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
GAVRIL FARKAS (HUMBOLDT UNIVERSITAT) 
The birational geometry of the moduli space of spin curves 

March 02, 2010, 430 pm at MIT (26142) 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
CHRISTIAN SCHNELL (UNIVERSITY OF ILLINOIS AT CHICAGO) 
Complexanalytic Neron models for families of intermediate Jacobians 

March 02, 2010, 3 pm at MIT (26142) 
DIFFERENTIAL GEOMETRY SEMINAR 
ANDREW STROMINGER (HARVARD UNIVERSITY) 
The Kerr/CFT Correspondence 

March 02, 2010, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
YAKOV SINAI (PRINCETON) 
Smoothness of solutions of the NavierStokes System inside the square 

March 01, 2010, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
JEREMY KAHN (STONY BROOK UNIVERSITY) 
Essential Immersed Surfaces in Closed Hyperbolic 3Manifolds 

February 26, 2010, 330  430 pm at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
ANTTI KEMPPAINEN (UNIVERSITE' PARISSUD AND UNIVERSITY OF HELSINKI) 
Random curves, scaling limits and Loewner evolutions 

February 26, 2010, 1 pm at Science Center, Room 232 
THE THURSDAY SEMINAR 
CLARK BARWICK (HARVARD UNIVERSITY) 
The AtiyahHirzebruch spectral sequence for algebraic Ktheory 

February 25, 2010, 3  5 pm at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
J. YIN (HARVARD UNIVERSITY) 
Universality for generalized Wigner matrices 

February 25, 2010, 310 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
MATT BAKER (GEORGIA INSTITUTE OF TECHNOLOGY) 
Complex dynamics and adelic potential theory 

February 24, 2010, 3  4 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
RYAN REICH (HARVARD UNIVERSITY) 
Affine GrassmannianII geometric Satake equivalence 

February 23, 2010, 530  800 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
CURT MCMULLEN (HARVARD UNIVERSITY) 
K3 surfaces , entropy and glue 

February 23, 2010, 330  430 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
VICTOR GUILLEMIN (MIT) 
Rethinking the role of heat invariants in inverse spectral problems 

February 23, 2010, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
ANTTI KNOWLES (HARVARD UNIVERSITY) 
Controlling quantum fluctuations in the meanfield limit 

February 22, 2010, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
ZHONGTAO WU (PRINCETON) 
Cosmetic Surgery Conjecture for S^3 

February 19, 2010, 330  430 pm at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
C. BORGS (MICROSOFT) 
Polya Urns and Convergence of Preferential Attachment Graphs 

February 18, 2010, 310 pm at Science Center, Room 232 
THE THURSDAY SEMINAR 
JACOB LURIE (HARVARD UNIVERSITY) 
The Motivic EilenbergMacLane Spectrum 

February 18, 2010, 35 pm at Science Center, Room 232 
JOINT BRANDEISHARVARDMIT NORTHEASTERN MATHEMATICS COLLOQUIUM 
ZHOUPING XIN (THE CHINESE UNIVERSITY OF HONG KONG) 
Mixed Type Equations and Compressible Transonic Flows 

February 18, 2010, 430 pm at Science Center, Hall D 
NUMBER THEORY SEMINAR 
MARK REEDER () 
Supercuspidal representations and invariant theory 

February 17, 2010, 3  4 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
RYAN REICH (HARVARD UNIVERSITY) 
Affine GrassmannianI factorization, convolution and fusion 

February 16, 2010, 530  800 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
MBOYO ESOLE (HARVARD UNIVERSITY) 
Ftheory and new types of singular fibers for elliptic fibrations 

February 16, 2010, 130  300 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
ALEX SUBOTIC (HARVARD UNIVERSITY) 
A monoidal structure for Fukaya categories 

February 12, 2010, 330  430 pm at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
HOI H. NGUYEN (RUTGERS UNIVERSITY) 
On the inverse LittlewoodOfford problem 

February 11, 2010, 310 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
ZHIWEI YUN () 
From automorphic forms to Klooserman sheaves 

February 10, 2010, 3  4 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
MANISH PATNAIK (HARVARD UNIVERSITY) 
Geometry of arithmetic quotients of loop groups 

February 09, 2010, 3 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
LOK MING (RONALD) LUI (HARVARD UNIVERSITY) 
Computational Differential Geometry and its application to Human Brain Mapping 

February 09, 2010, 130  300 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
DENNIS GAITSGORY (HARVARD UNIVERSITY) 
Overview and recap of Dustin's talk on quantization 

February 09, 2010, 530  800 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
THOMAS SPENCER (PRINCETON) 
Random band matrices, statistical mechanics and hyperbolic symmetry 

February 08, 2010, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
JACOB LURIE (HARVARD UNIVERSITY) 
Nonabelian Poincare Duality 

February 05, 2010, 330  430 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
MIKE HOPKINS (HARVARD UNIVERSITY) 
Applications of the Connectivity Theorem 

February 04, 2010, 3  5 pm at Science Center, Room 507 
RANDOM MATRIX AND PROBABILITY SEMINARS 
SIJUE WU (UNIVERSITY OF MICHIGAN) 
Wellposedness of the two and three dimensional full water wave problem 

February 04, 2010, 310 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
BARRY MAZUR (HARVARD UNIVERSITY) 
Ranks of twists of elliptic curves and Hilbert's Tenth Problem 

February 03, 2010, 3  4 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
MARAT ROVINSKY (INSTITUTE FOR ADVANCED STUDY) 
Stable birational invariants with the Galois descent property 

February 02, 2010, 430 pm at MIT (26142) 
DIFFERENTIAL GEOMETRY SEMINAR 
FRANS PRETORIUS (PRINCETON) 
Black Hole Mergers 

February 02, 2010, 130  300 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
EKATERINA AMERIK (UNIVERSITE' DE PARISSUD) 
Selfmaps and rational points 

February 02, 2010, 3 pm at MIT (26142) 
BASIC NOTIONS SEMINAR 
BARRY MAZUR (HARVARD UNIVERSITY) 
Hilbert's 10th Problem and Elliptic Curves 

February 01, 2010, 3 pm at Science Center, Room 507 
SPECIAL SEMINAR 
C. HONGLER (GENEVA) 
The energy density in the 2D Ising model 

January 29, 2010, 130 pm at Science Center, Room 232 
RANDOM MATRIX SEMINARS 
DAN STROOCK (MIT) 
An old theorem of I.M Segal's in a probabilistic setting 

January 28, 2010, 310 pm at Science Center, Room 232 
SPECIAL SEMINAR 
DAN MANGOUBI (HEBREW UNIVERSITY) 
Properties of Eigenfunctions and Harmonic Junctions 

January 28, 2010, 5 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
YUJONG TZENG (STANFORD UNIVERSITY) 
Universal Formulas for Counting Nodal Curves on Surfaces 

January 26, 2010, 3 pm at Science Center, Room 507 
SPECIAL SEMINAR 
XIAOFENG SUN (LEHIGH UNIVERSITY) 
Global Torelli theorem of the Teichmuller space of CalabiYau and Hyperkahler manifold 

January 08, 2010, 230 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
DAVID HELM (UNIVERSITY OF TEXAS) 
Algebraic families of admissible representations of GL_n(Q_p) 

December 09, 2009, 3 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
DENNIS ERIKSSON (UNIVERSITY OF TOKYO) 
The determinant of the cohomology revisited 

December 08, 2009, 3 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
DAVID KAZHDAN () 
Classical vs. Geometric Langlands 

December 08, 2009, 530 pm at MIT (2139) 
BASIC NOTIONS SEMINAR 
ANDREW COTTONCLAY (HARVARD UNIVERSITY) 
Symplectic field theory, tightness, and dynamics of vector fields 

December 07, 2009, 3 pm at Science Center, Room 507 
SPECIAL SEMINAR 
BENJAMIN WEINKOVE (UNIVERSITY OF CALIFORNIA SAN DIEGO) 
Complex MongeAmpere equation 

December 07, 2009, 1  2 pm at Science Center, Room 507 
SPECIAL SEMINAR 
SI LI (HARVARD UNIVERSITY) 
Picard Fuchs equations of relative period on CalabiYau hypersurface 

December 04, 2009, 2  3 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
MIKE HOPKINS (HARVARD UNIVERSITY) 
Homotopy invariance of the cohomology of special linear groups 

December 03, 2009, 3  5 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
T. KEMP (MIT) 
Chaos and the Fourth Moment 

December 03, 2009, 3 pm at Science Center, Room 232 
DYNAMICS AND GEOMETRY SEMINAR 
GIULIO TIOZZO (HARVARD UNIVERSITY) 
The entropy of $\alpha$continued fractions 

December 02, 2009, 4  5 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
ANDREW KNIGHTLY (UNIVERSITY OF MAINE) 
Explicit relative trace formulas on GL(2) 

December 02, 2009, 3 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
GREGORY PEARLSTEIN (MICHIGAN STATE UNIVERSITY) 
Zero loci of normal functions 

December 01, 2009, 3  4 pm at MIT (26204) 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
DUSTIN CLAUSEN () 
Quantization 

December 01, 2009, 530 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
CLARK BARWICK (HARVARD UNIVERSITY) 
Descent problems for Ktheory 

November 30, 2009, 3 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
JOHN VOIGHT (UNIVERSITY OF VERMONT) 
Algebraic curves uniformized by congruence subgroups of triangle groups 

November 25, 2009, 3  4 pm at Science Center, Room 507 
SPECIAL SEMINAR 
YNGING LEE (NATIONAL TAIWAN UNIVERSITY) 
Special solutions to Lagrangian mean curvature flow 

November 25, 2009, 2  3 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
MELISSA LIU (COLUMBIA UNIVERSITY) 
CoherentConstructible Correspondence for Toric Varieties and Toric Orbifolds 

November 24, 2009, 130  300 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
MIHNEA POPA (UNIVERSITY OF ILLINOIS AT CHICAGO) 
BGG correspondence and the cohomology of compact kaehler manifolds 

November 24, 2009, 3  4 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
HANS SCHOUTENS (NEW YORK CITY COLLEGE OF TECHNOLOGY) 
Schemic Grothendieck rings and motivic rationality 

November 23, 2009, 315 pm at MIT 3442 
BASIC NOTIONS SEMINAR 
DENNIS GAITSGORY (HARVARD UNIVERSITY) 
Quantum Langlands 

November 23, 2009, 3 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
P. DEIFT (COURANT INSTITUTE) 
Integrable systems a modern view 

November 19, 2009, 3 pm at Science Center, Room 232 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
JACOB LURIE (HARVARD UNIVERSITY) 
Crystals of schemes 

November 19, 2009, 6 pm at MIT (2139) 
NUMBER THEORY SEMINAR 
XINYI YUAN (HARVARD UNIVERSITY) 
Okounkov bodies for arithmetic line bundles 

November 18, 2009, 3  4 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
GENEVIEVE WALSH (TUFTS) 
Commensurability of knot complements 

November 18, 2009, 4  5 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
JOSEPH RABINOFF (HARVARD UNIVERSITY) 
Tropical intersection numbers and canonical subgroups 

November 17, 2009, 3  4 pm at MIT (26204) 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
JACOB LURIE (HARVARD UNIVERSITY) 
Crystals 

November 17, 2009, 530  800 pm at MIT (2139) 
DIFFERENTIAL GEOMETRY SEMINAR 
CRAIG VAN COEVERING (MIT) 
Asymptotically conical manifolds and the MongeAmp\'{e}re equation 

November 17, 2009, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
JOSEPH RABINOFF (HARVARD UNIVERSITY) 
Beyond Newton polygons locating the zeros of polynomials over a nonArchimedean field 

November 16, 2009, 3 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
W. DE ROECK (ETH ZURICH) 
Diffusion of a massive quantum particle in coupled to a thermal medium in dimension $d\geq 4$ 

November 12, 2009, 3 pm at Science Center, Room 232 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
ANDREI NEGUT (HARVARD UNIVERSITY) 
Dschemesjet schemes and conformal blocks in the commutative case 

November 12, 2009, 530  7pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
JACOB LURIE (HARVARD UNIVERSITY) 
Fundamental groups of A^1invariant sheave (continued) 

November 12, 2009, 3  5 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
DAN MARGALIT (TUFTS) 
Small dilatation pseudoAnosovs and 3manifolds 

November 11, 2009, 4  6 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
BIANCA VIRAY (BERKELEY) 
Failure of the Hasse principle for Enriques surfaces 

November 11, 2009, 3  4 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
DUSTIN CLAUSEN () 
Determinant line bundle and the KacMoody extensionII 

November 10, 2009, 5308 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
KIRSTEN WICKELGREN (HARVARD UNIVERSITY) 
Etale pie1 obstructions to rational points 

November 10, 2009, 3 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
WILFRIED SCHMID (HARVARD UNIVERSITY) 
Hodge theory and unitary representations of reductive Lie groups 

November 09, 2009, 3 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
() 


November 05, 2009, 3  5 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
ROMAN BEZRUKAVNIKOV () 
Hitchin fibration and affine Springer fibersII 

November 05, 2009, 530  700 pm at MIT (2139) 
RANDOM MATRIX SEMINARS 
C. KING (NORTHEASTERN) 
Additivity counterexamples in quantum information theory via random matrix methods 

November 05, 2009, 3 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
RICHARD TAYLOR (HARVARD UNIVERSITY) 
Potential automorphy for n dimensional Galois representations 

November 04, 2009, 3  4 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
ANDREW COTTONCLAY (HARVARD UNIVERSITY) 
Holomorphic Pants in R times a Mapping Torus 

November 04, 2009, 4  6 pm at Science Center, Room 507 
SPECIAL SEMINAR 
LE DUNG TRANG () 
Geometry of singular maps 

November 04, 2009, 2  3 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
DUSTIN CLAUSEN () 
Infinitedimensional linear algebra, the determinant line bundle, and KacMoody extension 

November 03, 2009, 530 pm at MIT (2139) 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
DANIEL ERMAN (UNIVERSITY OF CALIFORNIA AT BERKELEY) 
Deformations of 0dimensional schemes 

November 03, 2009, 3 pm at MIT (26204) 
DIFFERENTIAL GEOMETRY SEMINAR 
YONG LIN (HARVARD UNIVERSITY) 
Ricci curvature on locally finite graphs 

November 03, 2009, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
HAO XU (HARVARD UNIVERSITY) 
Intersection theory on moduli spaces of curves 

November 02, 2009, 3 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
BENEDEK VALKO (WISCONSIN) 
Scaling limits of the betageneralizations of classical ensembles 

October 29, 2009, 3 pm at Science Center, Room 232 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
ROMAN BEZRUKAVNIKOV () 
Higgs bundles and the Hitchin baseII affine Springer fibers (introduction to the work of B.C. Ngo) 

October 29, 2009, 530  700 PM at Science Center, Room 507 
THE THURSDAY SEMINAR 
JACOB LURIE (HARVARD UNIVERSITY) 
Fundamental groups of A^1invariant sheaves 

October 29, 2009, 3  5 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
TOBIAS COLDING (MIT) 
Singularities of mean curvature flow 

October 28, 2009, 4  5 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
BEN HOWARD (BC) 
Hilbert modular surfaces, HirzebruchZagier divisors, and CM points 

October 28, 2009, 3  4 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
DENNIS GAITSGORY (HARVARD UNIVERSITY) 
Higgs bundles and the Hitchin baseI local triviality of Gbundles (Steinberg's theorem) 

October 27, 2009, 530  800 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
STEPHANIE YANG (KUNGLIGA TEKNISKA HOGSKOLAN STOCKHOLM) 
Tautological rings of moduli spaces of curves 

October 27, 2009, 3 PM at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
KWOK WAI CHAN (HARVARD UNIVERSITY) 
The OoguriVafa Metric, Holomorphic Discs and WallCrossing 

October 27, 2009, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
HONRGTZER YAU (HARVARD UNIVERSITY) 
Eigenvalue distributions of random matrices  a dynamical approach 

October 26, 2009, 3 pm at Science Center, Room 507 
SPECIAL DIFFERENTIAL GEOMETRY SEMINAR 
RICHARD SCHOEN (STANFORD UNIVERSITY) 
Extremal problems for low eigenvalues and minimal submanifolds 

October 23, 2009, 130  230 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
ANATOLY PREYGEL () 
The unstable connectivity theorem 

October 22, 2009, 3  5 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
XINWEN ZHU (HARVARD UNIVERSITY) 
Global nilpotent cone and flatness of the Hitchin map 

October 22, 2009, 530  7pm at MIT (2139) 
RANDOM MATRIX SEMINARS 
R. KENYON (BROWN UNIVERSITY) 
Laplacians on graphs 

October 22, 2009, 3 pm at Science Center, Room 232 
DIFFERENTIAL GEOMETRY SEMINAR 
JUN LI (STANFORD UNIVERSITY) 
Degeneration of Hilbert scheme of ideal sheaves and a proof of Goettsche conjecture 

October 21, 2009, 2  3 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
MARTIN BRIDGEMAN (BOSTON COLLEGE) 
The orthospectra of finite volume hyperbolic manifolds with totally geodesic boundary and associated volume identities 

October 21, 2009, 4  5 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
DAVID GERAGHTY (HARVARD UNIVERSITY) 
The SatoTate conjecture for Hilbert modular forms 

October 21, 2009, 3  4 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
ALINA MARIAN (UNIVERSITY OF ILLINOIS AT CHICAGO) 
The moduli space of stable quotients 

October 20, 2009, 3 pm at MIT (26204) 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
ANDREI NEGUT (HARVARD UNIVERSITY) 
The Hitchin map, global vs. local 

October 20, 2009, 530  800 pm at MIT (2139) 
DIFFERENTIAL GEOMETRY SEMINAR 
CUMRUN VAFA (HARVARD UNIVERSITY, PHYSICS) 
KontsevichSoibelman Wall Crossing and Topological Strings 

October 20, 2009, 130  300 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
CEDRIC VILLANI (IHP PARIS) 
Landau damping 

October 19, 2009, 3 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
VAN VU (RUTGERS UNIVERSITY) 
Random Matrices The Universality Phenomenon 

October 16, 2009, 12  1 pm at Science Center, Room 232 
GAUGE THEORY AND TOPOLOGY 
CHARLES LIVINGSTON (INDIANA UNIVERSITY) 
Topologically slice knots with nontrivial Alexander polynomial 

October 16, 2009, 330  430 pm at Science Center, Room 507 
SPECIAL DIFFERENTIAL GEOMETRY SEMINAR 
ZBIGNIEW BLOCKI (JAGIELLONIAN UNIVERSITY) 
Defining complex MongeAmpere operator for nonsmooth functions 

October 14, 2009, 2  3 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
NOAM ELKIES (HARVARD UNIVERSITY) 
On the areas of rational triangles 

October 14, 2009, 34 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
SARAH KOCH (HARVARD UNIVERSITY) 
Dynamics of maps on moduli space 

October 14, 2009, 4  5 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
DENNIS GAITSGORY (HARVARD UNIVERSITY) 
The loop group and the affine Grassmannian 

October 13, 2009, 530  800 pm at Science Center, Room 507 
SPECIAL DIFFERENTIAL GEOMETRY SEMINAR 
SERGIO CECOTTI (SCUOLA INTERNAZIONALE SUPERIORE DI STUDI AVANZATI) 
Yukawa couplings in Ftheory and a noncommutative residue formula 

October 13, 2009, 4  530 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
SLAWOMIR KOLODZIEJ (JAGIELLONIAN UNIVERSITY) 
Volume of sublevel sets of plurisubharmonic functions 

October 13, 2009, 130  300 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
WEI HO (HARVARD UNIVERSITY) 
Orbit parametrizations of curves 

October 13, 2009, 3 pm at Science Center, Room 507 
SPECIAL DIFFERENTIAL GEOMETRY SEMINAR 
LINYUAN LINCOLN LU (UNIVERSITY OF SOUTH CAROLINA) 
A random graph model for complex graphs 

October 09, 2009, 330  430 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
ALEXANDER GRIGORYAN (UNIVERSITAT BIELEFELD) 
On positive solutions of semilinear elliptic inequalities on complete Riemannian manifods 

October 09, 2009, 2  3 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
NIR AVNI (HARVARD UNIVERSITY) 
The loop group and its action on Bun (G). 

October 08, 2009, 530  7pm at MIT (2139) 
SPECIAL LECTURE 
HARVEY M. FRIEDMAN (OHIO STATE UNIVERSITY) 
Unprovable Theorems 

October 08, 2009, 430  600 pm at Science Center, Room 221 
THE THURSDAY SEMINAR 
MIKE HOPKINS (HARVARD UNIVERSITY) 
The A^1 connectivity theorems 

October 08, 2009, 3  5 pm at Science Center, Room 507 
SPECIAL ANALYSIS SEMINAR 
LOUIS NIRENBERG (NEW YORK UNIVERSITY COURANT INSTITUTE OF MATHEMATICAL SCIENCES) 
On Singular Solutions of Fully Nonlinear Elliptic Equation 

October 07, 2009, 2  3 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
WEI ZHANG (HARVARD UNIVERSITY) 
An arithmetic fundamental lemma for the unitary group of three variable 

October 07, 2009, 3  4 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
SERGIO FENLEY (FSU/PRINCETON) 
PseudoAnosov flows and large scale geometry of 3manifolds 

October 07, 2009, 4  5 pm at Science Center, Room 507 
AHLFORS LECTURES 
PETER LAX (NYU) 
Degenerate Matrices 

October 06, 2009, 245  345 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
SAM RASKIN () 
Contangent space and Dmodules on an algebraic stackIII 

October 06, 2009, 530  800 pm at MIT (2139) 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
BRIAN LEHMANN (MIT) 
Pseudoeffective reduction maps 

October 06, 2009, 3  4 pm at MIT (26204) 
THE THURSDAY SEMINAR 
KIRSTEN WICKELGREN (HARVARD UNIVERSITY) 
Suslin's paper On the KTheory of Algebraically Closed Fields 

October 01, 2009, 3  5 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
M. RUDELSON (UNIVERSITY OF MISSOURI, COLUMBIA) 
Invertibility of random matrices 

October 01, 2009, 3  410 pm at Science Center, Room 232 
JOINT BRANDEISHARVARDMIT NORTHEASTERN MATHEMATICS COLLOQUIUM 
GIOVANNI FELDER (ETH ZURICH) 
Holomorphic differential operators and the RiemannRochHirzerburch formula 

October 01, 2009, 430 pm at Science Center, Hall A 
DYNAMICS AND GEOMETRY SEMINAR 
HEE OH (BROWN UNIVERSITY) 
Equidistribution and Counting for geometrically finite hyperbolic groups 

September 30, 2009, 4  5 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
MATTHIAS SCHUETT (HARVARD UNIVERSITY) 
Arithmetic of Enriques surfaces 

September 30, 2009, 3  4 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
SAMUEL GRUSHEVSKY (STONY BROOK UNIVERSITY) 
The geometry of Mg and differentials with real periods 

September 29, 2009, 3 pm at Science Center, Room 507 
BASIC NOTIONS SEMINAR 
JACOB LURIE (HARVARD UNIVERSITY) 
Categorification of the Fourier Transform 

September 28, 2009, 3 pm at Science Center, Room 507 
JOINT BRANDEISHARVARDMIT NORTHEASTERN MATHEMATICS COLLOQUIUM 
MATTHEW EMERTON (NORTHWESTERN) 
The growth of cohomology in towers of manifolds 

September 24, 2009, 430 PM at Science Center, Hall A 
RANDOM MATRIX SEMINARS 
IVAN CORWIN (COURANT INSTITUTE) 
Fluctuations in traffic flow, crystal growth and random matrices 

September 24, 2009, 3 pm at Science Center, Room 232 
THE THURSDAY SEMINAR 
DUSTIN CLAUSEN () 
An introduction to the A^1homotopy category 

September 24, 2009, 3  5 pm at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
SAM RASKIN () 
Cotangent space and Dmodules on an algebraic stackII 

September 24, 2009, 530  7pm at MIT (2139) 
NUMBER THEORY SEMINAR 
MATTHEW EMERTON (NORTHWESTERN) 
On the padically completed cohomology of Shimura varieties for U(2,2) 

September 23, 2009, 3  4 pm at Science Center, Room 507 
DYNAMICS AND GEOMETRY SEMINAR 
ERIKO HIRONAKA (HARVARD UNIVERSITY) 
Small dilatation pseudoAnosov mapping classes coming from the simplest pseudoAnosov braid 

September 23, 2009, 4  5 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
LISHENG TSENG (HARVARD UNIVERSITY) 
Cohomolgoy and Hodge Theory on Symplectic Manifolds 

September 22, 2009, 130  300 PM at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
YURI TSCHINKEL (NEW YORK UNIVERSITY) 
K3 surfaces and their higher dimensional analogs 

September 22, 2009, 3 pm at MIT (26204) 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
SAM RASKIN () 
Contangent space and Dmodules on an algebraic stackI 

September 22, 2009, 530  800 pm at MIT (2139) 
BASIC NOTIONS SEMINAR 
BENEDICT GROSS (HARVARD UNIVERSITY) 
Selfdual and conjugatedual Galois representations 

September 21, 2009, 3 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
MICHAEL HOPKINS (HARVARD UNIVERSITY) 
Introduction to the FriedlanderMilnor conjecture 

September 17, 2009, 3  5 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
MIGUEL TIERZ (BRANDEIS) 
Random matrices, StieltjesWigert polynomials and 1 D exactly solvable models. 

September 17, 2009, 3 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
MATTHEW EMERTON (NORTHWESTERN) 
Even Galois Representations and the FontaineMazur Conjecture 

September 16, 2009, 3  4 PM at Science Center, Room 507 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
SAM RASKIN () 
Cotangent space and Dmodules on an algebraic stackI 

September 15, 2009, 5308pm at Science Center, Room 232 
DIFFERENTIAL GEOMETRY SEMINAR 
CLAY CORDOVA (HARVARD UNIVERSITY) 
Decoupling Gravity in FTheory 

September 15, 2009, 130  3 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
CHENYANG XU (MIT) 
Strong rational connectedness of surfaces and its applications 

September 15, 2009, 3 pm at Science Center, Room 507 
SPECIAL SEMINAR 
JOEL SMOLLER (UNIVERSITY OF MICHIGAN, ANN ARBOR) 
Linear Waves in the Kerr Geometry 

September 11, 2009, 1030 am at Science Center, Room 530 
RANDOM MATRIX SEMINARS 
ANTTI KNOWLES (HARVARD UNIVERSITY) 
Recent development on Quantum Brownian Motion 

September 10, 2009, 3pm at Science Center, Room 232 
THE TRIVIAL NOTIONS SEMINAR 
JACK HUIZENGA (HARVARD UNIVERSITY) 
How to count like Michel Chasles (and not like Jacob Steiner) 

September 10, 2009, 207 pm at Science Center, Room 507 
JOINT BRANDEISHARVARDMIT NORTHEASTERN MATHEMATICS COLLOQUIUM 
JOEL SMOLLER (UNIVERSITY OF MICHIGAN, ANN ARBOR) 
Expanding Wave Solutions of the Einstein Equations that Induce an Anomalous Acceleration into the Standard Model of Cosmology 

September 10, 2009, 430 pm at Science Center, Hall D 
HARVARD/MIT GRADUATE STUDENT SEMINAR IN GEOMETRIC REPRESENTATION THEORY 
DENNIS GAITSGORY AND TOLY PREYGEL (HARVARD UNIVERSITY) 
Background on algebraic stacks 

September 10, 2009, 530  7pm at MIT (2139) 
NUMBER THEORY SEMINAR 
TIM DOKCHITSER (CAMBRIDGE UNIVERSITY) 
On the parity conjecture for elliptic curves 

September 9, 2009, 34PM at SC 507 
RANDOM MATRIX SEMINAR 
Alexei Borodin (CALTECH) 
Interlacing Particle Systems 

September 3, 2009, 3PM at SC 232 
SUMMER TOPOLOGY SEMINAR 
MARK MAHOWALD (NORTHWESTERN UNIVERSITY) 
Homotopy theory of the Kervaire invariant 

August 10, 2009, 3  4 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
AMNON NEEMAN (MATHEMATICAL SCIENCES INSTITUTEANU) 
A New Approach to Dualizing Complexes 

May 19, 2009, 3 pm at Science Center, Room 507 
WORKSHOP IN STRING THEORY, GENERAL RELATIVITY, AND PARTIAL DIFFERENTIAL EQUATIONS 
ERIC ZASLOW (NORTHWESTERN UNIVERSITY) 
Constructible Sheaves and the Fukaya Category 

May 14, 2009, 315  415 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
J. QUASTEL (TORONTO) 
Effect of noise on traveling fronts 

May 14, 2009, 11 am at Science Center, Room 232 
DIFFERENTIAL GEOMETRY SEMINAR 
PAOLO ALUFFI (FLORIDA STATE UNIVERSITY) 
Unexpected applications of characteristic classes for singular varieties 

May 12, 2009, 4  5 pm at Science Center, Room 507 
SPECIAL GEOMETRY SEMINAR 
IVAN CHELTSOV (UNIVERSITY OF EDINBURGH) 
Alphainvariants of Fano orbifolds 

May 11, 2009, 4  5 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
MICHAEL HOPKINS (HARVARD UNIVERSITY) 
The Kervaire invariant problem 

May 11, 2009, 3 pm at Science Center, Room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
THOMAS KOBERDA (HARVARD UNIVERSITY) 
Braids and Their Dilatations The Burau, Gassner and Bigelow representations. 

May 06, 2009, 4 pm at Science Center, Room 507 
SPECIAL LECTURE 
ROBERT MERTON (HARVARD UNIVERSITY) 
On the Science of Finance in the Practice of Finance Observations on the Financial Crisis 

May 05, 2009, 1115  1230 pm at Science Center, Room 507 
SPECIAL NUMBER THEORY SEMINAR 
JEANLOUP WALDSPURGER (PARIS) 
An integral formula related to the local GrossPrasad conjecture, for tempered representations 

May 04, 2009, 3  4 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
TIANJUN LI (UNIVERSITY OF MINNESOTA) 
Symplectic cones of almost complex 4manifolds 

May 01, 2009, 230  330 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
OLGA STROILOVA (MIT) 
Classification of pcompact groups, part I reflection and realization 

April 30, 2009, 4  6 pm at Science Center, Room 507 
THE TRIVIAL NOTIONS SEMINAR 
ALEKSANDAR SUBOTIC (HARVARD UNIVERSITY) 
Homological Mirror Symmetry for the Elliptic Curve 

April 30, 2009, 207 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
DAVID GERAGHTY (HARVARD UNIVERSITY) 
Modularity Lifting Theorems for Nearly Ordinary Galois Representations 

April 29, 2009, 3 pm at Science Center, Room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
() 


April 29, 2009, at 
DIFFERENTIAL GEOMETRY SEMINAR 
SERGEY GRIGORIAN () 
Betti numbers of barely G2 manifolds 

April 28, 2009, 130  300 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
ALICE GUIONNET (LYON) 
Random matrices, free probability and enumerations of maps 

April 27, 2009, 3 pm at Science Center, Room 507 
SPECIAL RANDOM MATRIX SEMINAR 
ALICE GUIONNET (LYON) 
Large random matrices with heavy tailed entries 

April 24, 2009, 12 noon at Science Center, Room 232 
GAUGE THEORY AND TOPOLOGY 
JONATHAN WEITSMAN (NORTHEASTERN) 
Fermionization, convergent perturbation theory, and correlations in quantum gauge theories with cutoffs. 

April 24, 2009, 330  430 pm at Science Center, Room 507 
SPECIAL PROBABILITY SEMINAR 
YUVAL PERES (MICROSOFT RESEARCH) 
Markov chains and embeddings in Hilbert space 

April 23, 2009, 12 noon at Science Center, Room 232 
THE TRIVIAL NOTIONS SEMINAR 
JACK THORNE (HARVARD UNIVERSITY) 
Toric Varieties 

April 23, 2009, 207 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
JOHN DUNCAN (HARVARD UNIVERSITY) 
Discrete groups and formal series 

April 22, 2009, 3 pm at Science Center, Room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
A. BUFETOV () 
Suspension flows over Vershik's automorphisms 

April 22, 2009, 4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
WILLIAM MEEKS (UNIVERSITY OF MASSACHUSETTS, AMHERST) 
The geometry, regularity and topological properties of CMC laminations and foliations of Riemannian 3manifolds 

April 21, 2009, 130  300 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
DIANE MACLAGAN (UNIVERSITY OF WARWICK) 
Tropical Bounds on Nef Cones 

April 21, 2009, 3 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
JUN YIN (HARVARD UNIVERSITY) 
Mathematical problems in quantum manybody physics 

April 20, 2009, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
JIM SIMONS (RENAISSANCE TECHNOLOGIES) 
Structured Bundles and Differential Cohomology 

April 17, 2009, 330  430 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
MAT GELVIN (MIT) 
DwyerKan obstruction theory 

April 16, 2009, 4  6 pm at Science Center, Room 507 
THE TRIVIAL NOTIONS SEMINAR 
DAVID GERAGHTY (HARVARD UNIVERSITY) 
Representations of the absolute Galois group of Q 

April 16, 2009, 207 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
JUNECUE SUH (MIT) 
Nonhomeomorphic conjugates of connected Shimura varieties 

April 15, 2009, 3 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
YIN JUN (HARVARD UNIVERSITY) 
Sine beta process for local statistics of random matrix 

April 15, 2009, 2 pm at Science Center, Room 232 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
CLIFFORD TAUBES (HARVARD UNIVERSITY) 
An introduction to geometric quantization 

April 15, 2009, 4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
ANDREW NEITZKE (HARVARD UNIVERSITY) 
Wallcrossing and hyperkahler geometry 

April 14, 2009, 130  300 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
LYDIA BIERI (HARVARD UNIVERSITY) 
Geometric Analysis and General Relativity 

April 13, 2009, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
ANDY COTTONCLAY (MIT) 
Fixed point bounds for symplectic mapping classes 

April 10, 2009, 330  430 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
ANATOLY PREYGEL (MIT) 
pcompact groups The Weyl Group 

April 09, 2009, 4  6 pm at Science Center, Room 507 
THE TRIVIAL NOTIONS SEMINAR 
YUSHEN LIN () 
Mirror Symmetry and Predicting Enumerative Invariants 

April 09, 2009, 207 pm at Science Center, Room 507 
COLLOQUIUM 
HENRYK IWANIEC (RUTGERS UNIVERSITY) 
Is there a ghost in the house of prime numbers? 

April 09, 2009, 430 pm at Science Center, Hall D 
NUMBER THEORY SEMINAR 
EDWARD FRENKEL (UNIVERSITY OF CALIFORNIA AT BERKELEY) 
A rigid irregular connection on the projective line 

April 08, 2009, 3 PM at Science Center, Room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
NIMISH SHAH () 
Limits of expanding translates of shrinking curves on hyperbolic manifolds 

April 08, 2009, 4 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
THOMAS LAM (HARVARD UNIVERSITY) 
Random Partitions and random matrices, II 

April 08, 2009, 2 pm at Science Center, Room 232 
FACULTY COLLOQUIUM 
LISHENG TSENG (HARVARD UNIVERSITY) 
NonKahler Geometry 

April 06, 2009, 3pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
STEFAN FRIEDL (UNIVERSITY OF WARWICK) 
Symplectic 4manifolds and fibered 3 manifolds 

April 03, 2009, 330  430 pm at Science Center, Room 507 
THE TRIVIAL NOTIONS SEMINAR 
RYAN REICH (HARVARD UNIVERSITY) 
Evaluating Bezout's Theorem 

April 02, 2009, 207 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
JACOB LURIE (HARVARD UNIVERSITY) 
pCompact Groups Finding a Maximal Torus 

April 02, 2009, 4  6 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
NOAM ELKIES (HARVARD UNIVERSITY) 
On the rank of elliptic curves with a 2torsion point 

April 01, 2009, 3 pm at Science Center, Room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
DANIJELA DAMJANOVIC (HARVARD UNIVERSITY) 
Perturbations of some higher rank unipotent actions 

April 01, 2009, 4 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
THOMAS LAM (HARVARD UNIVERSITY) 
Random Partitions and random matrices, I 

April 01, 2009, 2 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
ROBERT POLLACK (BU) 
Fitting ideals of Selmer groups of modular forms 

March 31, 2009, 3  4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
VALENTINO TOSATTI (HARVARD UNIVERSITY) 
Large Kahler limits of CalabiYau metrics 

March 31, 2009, 130  3 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
DANIJELA DAMJANOVIC (HARVARD UNIVERSITY) 
Perturbations of some higher rank unipotent actions 

March 30, 2009, 3 PM at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
ZOLTAN SZABO (PRINCETON) 
Heegaard Floer homology and complete decomposing systems 

March 20, 2009, 330  430 pm at Science Center, Room 507 
DIFFERENTIAL SPHERICAL AND WHITTAKER FUNCTIONS (A NEW TAKE ON CLASSICAL HARMONIC ANALYSIS) 
IVAN CHEREDNIK (UNC CHAPEL HILL) 
Nonsymmetric Bessel Functions Via Spinors (Part II) 

March 19, 2009, 5  630 pm at Science Center, Room 232 
THE THURSDAY SEMINAR 
ANDRE HENRIQUES () 
Towards a Geometric Description of Elliptic Cohomology 

March 19, 2009, 4  6 pm at Science Center, Room 507 
THE TRIVIAL NOTIONS SEMINAR 
TANYA KOBYLYATSKAYA (HARVARD UNIVERSITY) 
A Gentle Introduction to Heegaard Floer Homology 

March 19, 2009, 207 pm at Science Center, Room 507 
COLLOQUIUM 
ZOLTAN SZABO (PRINCETON) 
Heegaard diagrams and invariants for threemanifolds 

March 19, 2009, 430 pm at Science Center, Hall D 
UPCOMING TALK 
STEPHEN T. YAU (UNIVERSITY OF ILLINOIS AT CHICAGO) 
Explicit construction of moduli space of bounded complete Reinhardt domains in C^{n} and Hilbert 14th problems 

March 18, 2009, 2  3 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
ARNAV TRIPATHY (HARVARD UNIVERSITY) 
Matrix Integrals and Map Enumeration 

March 18, 2009, 2 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
BRIAN CONRAD (STANFORD) 
Finiteness theorems for algebraic groups over global function fields 

March 18, 2009, 3 pm at Science Center, Room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
A.WILKINSON () 
Absolute continuity, Lyapunov exponents and rigidity. 

March 18, 2009, 4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
DAN MANGOUBI (UNIVERSITY OF MONTREAL) 
A Local Version of Courant's nodal domains theorem 

March 17, 2009, 130  300 pm at Science Center, Room 507 
DIFFERENTIAL SPHERICAL AND WHITTAKER FUNCTIONS (A NEW TAKE ON CLASSICAL HARMONIC ANALYSIS) 
IVAN CHEREDNIK (UNC CHAPEL HILL) 
Nonsymmetric Bessel Functions Via Spinors (Part I) 

March 17, 2009, 5  630 pm at Science Center, Room 232 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
SHIHOKO ISHII (TOKYO INSTITUTE OF TECHNOLOGY) 
Properties of Jet Schemes 

March 17, 2009, 3 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
JOHN DUNCAN (HARVARD UNIVERSITY) 
Poincare Series 

March 16, 2009, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
DANIEL RUBERMAN (BRANDEIS) 
SeibergWitten invariants and periodic Dirac operations 

March 13, 2009, 330  430 at SCience Center, Room 507 
THE TRIVIAL NOTIONS SEMINAR 
SI LI (HARVARD UNIVERSITY) 
Feynman Integrals and Threefold Invariants 

March 12, 2009, 207 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
JACOB LURIE (HARVARD UNIVERSITY) 
pcompact groups Existence of a Nontrivial Torus 

March 12, 2009, 4  6 pm at Science Center, Room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
E. HIRONAKA () 
PseudoAnosov mapping classes with small dilatation constructed from graphs 

March 11, 2009, 4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
CARLOS LOUSTO (CENTER FOR COMPUTATIONAL RELATIVITY AND GRAVITATION (CCRG), ROCHESTER INSTITUTE OF TECHNOLOGY) 
New results in numerical relativity 

March 10, 2009, 130  300 pm at Science Center, Room 507 
DIFFERENTIAL SPHERICAL AND WHITTAKER FUNCTIONS (A NEW TAKE ON CLASSICAL HARMONIC ANALYSIS) 
IVAN CHEREDNIK (MIT) 
Dunkl Operators Under Whittaker Limit 

March 10, 2009, 5  630 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
BENEDICT GROSS (HARVARD UNIVERSITY) 
Connections on algebraic curves 

March 09, 2009, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
YI NI (MIT) 
Nonseparating spheres and twisted Heegaard Floer homology 

March 06, 2009, 330  430 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
MICHAEL HOPKINS (HARVARD UNIVERSITY) 
Cohomology of pcompact groups 

March 05, 2009, 4  6 pm at Science Center, Room 507 
THE TRIVIAL NOTIONS SEMINAR 
ANA CARAIANI (HARVARD UNIVERSITY) 
Stacks for Dummies 

March 05, 2009, 207 pm at Science Center, Room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
R. DEVANEY (BOSTON UNIVERSITY) 
Dynamics of z ^{n} + C/z^{n} Why n=2 is crazy 

March 04, 2009, 45 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
BENEDICT GROSS (HARVARD UNIVERSITY) 
On the restriction of irreducible representations of classical groups 

March 04, 2009, 3 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
EDUARDO ESTEVES (INSTITUTO NACIONAL DE MATEMATICA PURA E APLICADA) 
Compactified Jacobians and Abel maps for singular curves 

March 03, 2009, 3 pm at Science Center, Room 507 
DIFFERENTIAL SPHERICAL AND WHITTAKER FUNCTIONS (A NEW TAKE ON CLASSICAL HARMONIC ANALYSIS) 
IVAN CHEREDNIK (MIT) 
Daha in Rank One Inner Product, Links , Limits 

March 03, 2009, 5  630 pm at Science Center, Room 232 
FACULTY COLLOQUIUM 
NOAM ELKIES (HARVARD UNIVERSITY) 
How to Solve Diophantine Equations 

March 02, 2009, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
YIJEN LEE (PURDUE UNIVERSITY) 
Periodic Floer homology and SeibergWitten Floer cohomology 

February 27, 2009, 330  430 pm at Science Center, Room 507 
THE TRIVIAL NOTIONS SEMINAR 
DAVID ROE (HARVARD UNIVERSITY) 
The Weil Conjectures 

February 26, 2009, 207 pm at Science Center, Room 507 
BRANDIESHARVARDMITNORTHEASTERN JOINT MATHEMATICS COLLOQUIUM 
VAUGHAN JONES (UNIVERSITY OF CALIFORNIA AT BERKELEY) 
Large N limit of random matrices, free probability and the graded algebra of a planar algebra 

February 26, 2009, 430 pm at Science Center, Hall D 
NUMBER THEORY SEMINAR 
DIMITAR JETCHEV (HUDSON RIVER TRADING LLC/IHES) 
Global divisibility of Heegner points and Tamagawa numbers 

February 25, 2009, 3  4 pm at Science Center, Room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
D. MARGALIT (TUFTS) 
Torelli groups and the complex of minimizing cycles. 

February 25, 2009, 4  5 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
CHIWANG SHU (BROWN UNIVERSITY) 
Local discontinuous Galerkin method for surface diffusion and Willmore flow of graphs 

February 24, 2009, 130  300 pm at Science Center, Room 507 
DIFFERENTIAL SPHERICAL AND WHITTAKER FUNCTIONS (A NEW TAKE ON CLASSICAL HARMONIC ANALYSIS) 
IVAN CHEREDNIK (MIT) 
Daha in Rank One Gaussians, The Form, Coinvariants 

February 24, 2009, 5  630 pm at Science Center, Room 232 
FACULTY COLLOQUIUM 
MARTIN NOWAK AND CORINA TARNITA (HARVARD UNIVERSITY) 
Evolutionary Dynamics on Sets 

February 23, 2009, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
TAMAR FRIEDMANN () 
Orbifold Singularities, Lie Algebras of the Third Kind (LATKes), and Pure YangMills with Matter 

February 20, 2009, 330  430 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
DUSTIN CLAUSEN () 
Weyl Groups of pCompact Groups 

February 19, 2009, 4  6 pm at Science Center, Room 507 
TRIVIAL NOTIONS SEMINAR 
CHENYU CHI (HARVARD UNIVERSITY) 
Be Rational, Geometry! 

February 19, 2009, 207 pm at Science Center, Room 507 
BRANDIESHARVARDMITNORTHEASTERN JOINT MATHEMATICS COLLOQUIUM 
ALEXANDER GONCHAROV (BROWN UNIVERSITY) 
The quantum dilogarithm and quantization of cluster varieties 

February 19, 2009, 430 pm at Science Center, Hall D 
RANDOM MATRIX SEMINARS 
HONRGTZER YAU (HARVARD UNIVERSITY) 
FIRST MEETING 

February 18, 2009, 207  330 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
DAVID KAZHDAN (HUJI) 
A computation of an endoscopic transform (joint work with Y. Varshavsky) 

February 18, 2009, 3  4 pm at Science Center, Room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
H. OH (BROWN UNIVERSITY) 
Apollonian circle packings and horospherical flows on hyperbolic 3manifolds 

February 18, 2009, 4  5 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
CHRISTINA SORMANI (LEHMAN COLLEGE AND CUNY GRADUATE CENTER) 
Intrinsic Flat Convergence of Riemannian Manifolds 

February 17, 2009, 430  600 pm at Science Center, Room 507 
DIFFERENTIAL SPHERICAL AND WHITTAKER FUNCTIONS (A NEW TAKE ON CLASSICAL HARMONIC ANALYSIS) 
IVAN CHEREDNIK (UNC) 
Daha and Affine Hall Functions 

February 17, 2009, 5  630 pm at Science Center, Room 232 
GAUGE THEORY AND TOPOLOGY 
INANC BAYKUR (BRANDEIS) 
Finite group actions and smooth structures on fourmanifolds. 

February 13, 2009, 330  430 pm at Science Center, Room 507 
TRIVIAL NOTIONS SEMINAR 
SAMIK BASU (HARVARD UNIVERSITY) 
Hirzebruch Problem 8 

February 12, 2009, 207 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
JACOB LURIE (HARVARD UNIVERSITY) 
Uniqueness of HP ^{infty} and the T functor 

February 12, 2009, 4  6 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
THOMAS BARNETLAMB (HARVARD UNIVERSITY) 
Potential automorphy for certain Galois representations to GL(n) 

February 11, 2009, 3  4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
BOHAN FANG (NORTHWESTERN UNIVERSITY) 
SYZ transformation and coherentconstructible correspondence for toric varieties 

February 10, 2009, 130  3 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
THOMAS LAM (HARVARD UNIVERSITY) 
The EdreiThoma Theorem 

February 09, 2009, 3 pm at Science Center, Room 507 
TRIVIAL NOTIONS SEMINAR 
VALENTINO TOSATTI (HARVARD UNIVERSITY) 
Metric Sociology 

February 05, 2009, 207 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
HAYNES MILLER (MIT) 
What is a compact group? 

February 05, 2009, 4  6 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
NOAM ELKIES (HARVARD UNIVERSITY) 
Questions on quadratically recurrent sequences 

February 04, 2009, 3  4 pm at Science Center, Room 507 
DIFFERENTIAL SPHERICAL AND WHITTAKER FUNCTIONS (A NEW TAKE ON CLASSICAL HARMONIC ANALYSIS) 
IVAN CHEREDNIK () 
This is an introduction to the course. Lectures will take place every Tuesday. 

February 03, 2009, 5  630 pm at Science Center, Room 232 
DIFFERENTIAL GEOMETRY SEMINAR 
SPYROS ALEXAKIS (MIT) 
Global Conformal Invariants A conjecture of Deser and Schwimmer 

February 03, 2009, 130  300 PM at Science Center, Room 507 
FACULTY COLLOQUIUM 
GERALD SACKS (HARVARD UNIVERSITY) 
Infinitely Long Formulas A Short Introduction 

February 02, 2009, 3 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
BENEDICT GROSS (HARVARD UNIVERSITY) 
On discriminants and their roots 

January 07, 2009, 3 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
MICHAEL TEMKIN (UNIVERSITY OF PENNSYLVANIA) 
Relative RiemannZariski Spaces 

December 16, 2008, 3 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
PAUL SEIDEL (MIT) 
Homological Mirror Symmetry for the Genus Two Curves 

December 16, 2008, 430 pm at Science Center, Room 507 
THE TRIVIAL NOTIONS SEMINAR 
THOMAS KOBERDA (HARVARD UNIVERSITY) 
How to Abelianize Groups That Are Difficult to Abelianize 

December 11, 2008, 207 pm at Science Center, Room 507 
BRANDIESHARVARDMITNORTHEASTERN JOINT MATHEMATICS COLLOQUIUM 
LAISANG YOUNG (COURANT INSTITUTE) 
Markov towers over chaotic dynamical systems 

December 11, 2008, 430  530 pm at Science Center, Hall D 
NUMBER THEORY SEMINAR 
KATHERINE STANGE (HARVARD UNIVERSITY) 
Elliptic Nets 

December 10, 2008, 3 PM at Science Center, Room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
R. MUKAMEL (MIT) 
Surfaces with Triangular Veech Groups 

December 10, 2008, 4 pm at Science Center, Room 507 
SPECIAL LECTURE 
AVRAHAM AIZENBUD (WEIZMANN INSTITUTE OF SCIENCE) 
Gelfand pairs and invariant distributions 

December 09, 2008, 130  230 pm at Science Center, Room 232 
DIFFERENTIAL GEOMETRY SEMINAR 
HUAIDONG CAO (LEHIGH UNIVERSITY) 
Geometry of Gradient Ricci Solitons 

December 09, 2008, 130  230 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
SHING TUNG YAU (HARVARD UNIVERSITY) 
Conserved quantities in classical general relativity 

December 08, 2008, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
ANDY NEITZKE (HARVARD UNIVERSITY) 
Wallcrossing formulae and hyperkahler geometry 

December 05, 2008, 330  430 pm at Science Center, Room 507 
TRIVIAL NOTIONS SEMINAR 
MARYANTHE MALLIARIS (UC BERKELEY) 
Pseudoinfinite Sets 

December 04, 2008, 207 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
DAVID NADLER (NORTHWESTERN UNIVERSITY) 
Constructible Sheaves and the Fukaya Category 

December 04, 2008, 3  5 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
TATHAGATA BASAK (UNIVERSITY OF CHICAGO) 
A Complex hyperbolic reflection group and the bimonster 

December 03, 2008, 3 pm at Science Center, Room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
S. SHEFFIELD (MIT) 
Hamburgers, cheeseburgers, and scaling limits of discrete random surfaces 

December 03, 2008, 4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
SHLOMO STERNBERG (HARVARD UNIVERSITY) 
A report on recent work of Alexeev, Bursztyn and Meinrenken 

December 02, 2008, 430 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
JENIA TEVELEV (UNIVERSITY OF MASSACHUSETTS) 
Effective divisors and curves on moduli spaces of curves 

December 02, 2008, 3 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
SOPHIE MOREL (INSTITUTE FOR ADVANCED STUDY) 
On the cohomology of certain noncompact Shimura varieties 

November 26, 2008, 3PM at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
BRUNO DE OLIVEIRA (UNIVERSITY OF MIAMI/ VISITING SCHOLAR HARVARD UNIVERSITY) 
Symmetric differentials and the geometry of projective varieties 

November 25, 2008, 3 pm at MIT (4231) 
DIFFERENTIAL GEOMETRY SEMINAR 
LE DUNG TRANG (ICTP TRIESTE ITALY) 
Rational Polynomials 

November 25, 2008, 430 pm at Science Center, Room 507 
TRIVIAL NOTIONS SEMINAR 
CARL ERICKSON () 
Modular Forms and You 

November 20, 2008, 207 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
JOE BLITZSTEIN (HARVARD UNIVERSITY STATISTICS DEPARTMENT) 
Random walks on graphs with bottlenecks 

November 20, 2008, 310  410 pm at Science Center, Room 232 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
N. AVNI (HARVARD UNIVERSITY) 
Dynamics on representation varieties  finite, compact and hyperbolic 

November 19, 2008, 4 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
FUCHENG TAN (MIT) 
Galois Eigenvarieties 

November 19, 2008, 3 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
CHENYU CHI (HARVARD UNIVERSITY) 
Pseudonorms and Birational Equivalence 

November 18, 2008, 145 pm at Science Center, Room 232 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
HSIANHUA TSENG (UNIVERSITY OF WISCONSIN) 
Hodge integrals on Hurwitz spaces and GromovWitten theory of orbifolds 

November 18, 2008, 3 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
LAUREN WILLIAMS (HARVARD UNIVERSITY) 
What does the nonnegative part of a flag variety look like? 

November 17, 2008, 3 PM at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
MATT HEDDEN (MIT) 
On the knot theory of complex and symplectic curves 

November 14, 2008, 330  530 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
SHEEL GANATRA () 
Derived Fukaya Categories and Lefschetz Fibrations 

November 13, 2008, 3  5 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
BALINT VIRAG (TORONTO) 
Large gaps between random eigenvalues and the Brownian carousel 

November 13, 2008, 310  410 pm at Science Center, Room 232 
THE TRIVIAL NOTIONS SEMINAR 
JACK HUIZENGA (HARVARD UNIVERSITY) 
How to Count Like Schubert 

November 13, 2008, 207 pm at Science Center, Room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
J. DUNCAN (HARVARD UNIVERSITY) 
Fuchsian groups and affine Dynkin diagrams 

November 12, 2008, 4 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
RALPH GREENBERG (UNIVERSITY OF WASHINGTON) 
Iwasawa Theory and Projective Modules 

November 12, 2008, 3 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
NICOLAOS KAPOULEAS (BROWN UNIVERSITY) 
The Gluing Constructions of Special Lagrangian Cones 

November 10, 2008, 4 pm at SCience Center, Room 507 
FACULTY COLLOQUIUM 
CLARK BARWICK (HARVARD UNIVERSITY) 
Schematic Homotopy Types 

November 10, 2008, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
LAWRENCE ROBERTS (MICHIGAN STATE UNIVERSITY) 
Knot Floer homology for fibered knots in double branched covers 

November 07, 2008, 330  430 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
MOHAMMED ABOUZAID (MIT) 
Fukaya categories of open lagrangians in cotangent bundles 

November 06, 2008, 3  5 pm at Science Center, Room 507 
THE TRIVIAL NOTIONS SEMINAR 
KATY KORNER (HARVARD UNIVERSITY) 
A Brief Overview of the Philosophy of Mathematics 

November 06, 2008, 207 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
MARCHUBERT NICOLE (CENTRE DE MATHEMATIQUES DE JUSSIEU) 
Purity of level m stratifications 

November 05, 2008, 3 pm at Science Center, Room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
D. FISHER (INDIANA UNIVERSITY, RADCLIFFE INSTITUTE) 
The space of discrete linear groups 

November 05, 2008, 4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
ARTEM PULEMOTOV (CORNELL UNIVERSITY) 
The LiYauHamilton Inequalities and the YangMills Heat Equation 

November 04, 2008, 430 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
JAROD ALPER (COLUMBIA UNIVERSITY) 
Constructing Moduli Spaces of Objects with Infinite Automorphisms 

November 04, 2008, 300 pm at MIT (4231) 
FACULTY COLLOQUIUM 
PETER KRONHEIMER (HARVARD UNIVERSITY) 
Using instantons to see the Thurston norm 

November 03, 2008, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
CAGATAY KUTLUHAN (MICHIGAN STATE UNIVERSITY) 
SeibergWitten Floer homology and symplectic forms on S1 × M3 

October 31, 2008, 330  430 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
CLARK BARWICK (HARVARD UNIVERSITY) 
Floer Homotopy and String Topology 

October 30, 2008, 3  5 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
MINGJUN LAI (UNIVERSITY OF GEORGIA) 
On Sparsest solutions of underdetermined linear systems 

October 30, 2008, 310  410 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
RACHEL OLLIVIER (HARVARD UNIVERSITY & ECOLE NORMALE SUPERIEURE) 
Mod p representations of padic GL(n) and Hecke modules 

October 29, 2008, 3 pm at Science Center, Room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
R. SCHWARTZ (BROWN, HARVARD) 
Outer billiards and the modular group 

October 29, 2008, 4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
TAMAR FRIEDMANN (MIT) 
Orbifold Singularities, The Latke, and Pure YangMiIls With Matter 

October 28, 2008, 430 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
WENCHUAN HU (MIT) 
The topological structure of Chow varieties 

October 28, 2008, 3 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
JOE HARRIS (HARVARD UNIVERSITY) 
The interpolation problem 

October 27, 2008, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
MIKHAIL KHOVANOV (COLUMBIA UNIVERSITY) 
How to categorify onehalf of a quantum group 

October 24, 2008, 330  430 pm at Science Center, Room 507 
THE TRIVIAL NOTIONS SEMINAR 
THOMAS BARNETLAMB (HARVARD UNIVERSITY) 
How to Vote 

October 23, 2008, 207 pm at SCience Center, Room 507 
THE THURSDAY SEMINAR 
JACOB LURIE (MIT) 
The Fukaya category II 

October 23, 2008, 3  5 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
A. HARROW (MIT) 
Random matrices in quantum information theory 

October 23, 2008, 310  410 pm at Science Center, Room 232 
MATH COLLOQUIUM 
MIKHAIL KHOVANOV (COLUMBIA UNIVERSITY) 
Categorification of quantum groups 

October 23, 2008, 430 pm at Science Center, Hall D 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
C. MCMULLEN (HARVARD UNIVERSITY) 
Brad groups and Hodge theory 

October 22, 2008, 4 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
MARK BEHRENS (MIT) 
Orientations and Eisenstein series 

October 22, 2008, 3 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
NIR AVNI (HARVARD UNIVERSITY) 
Motivic Integration 

October 20, 2008, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
KATRIN WEHRHEIM (MIT) 
Lagrangian correspondences and holomorphic quilts 

October 17, 2008, 330  430 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
S. SHEFFIELD () 
Liouville Quantum Gravity and KPZ 

October 16, 2008, 310  410 pm at Science Center, Room 232 
THE THURSDAY SEMINAR 
MICHAEL HOPKINS (HARVARD UNIVERSITY & ECOLE NORMALE SUPERIEURE) 
Preliminary construction of the Fukaya category 

October 16, 2008, 3  5pm at Science Center, Room 507 
INFORMAL DYNAMICS AND GEOMETRY SEMINAR 
CURT MCMULLEN (HARVARD UNIVERSITY) 
Random walks on the hyperbolic plane and barycentric subdivision 

October 15, 2008, 4 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
JOEL BELLAICHE (COLLUMBIA UNIVERSITY) 
Endoscopic tempered points on unitary eigenvarieties. 

October 15, 2008, 3 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
LIMING GE (UNIVERSITY OF NEW HAMPSHIRE) 
KadisonSinger Algebras 

October 14, 2008, 430 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
MIKIO FURUTA (UNIVERSITY OF TOKYO AND MIT) 
Torus fibration and localization of RiemannRoch number 

October 10, 2008, 330  430 pm at Science Center, Room 507 
TRIVIAL NOTIONS SEMINAR 
AARON SILBERSTEIN (HARVARD UNIVERSITY) 
Intersection Homology Saving Poincare Duality 

October 09, 2008, 207 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
CURTIS MCMULLEN (HARVARD UNIVERSITY) 
Diophantine numbers in a fixed real quadratic field and Poincaré's periodic portrait 

October 08, 2008, 3PM at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
VALENTINO TOSATTI (HARVARD UNIVERSITY) 
KahlerRicci flow and stability 

October 07, 2008, 400  500 pm at Science Center, Room 232 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
AMNON YEKUTIELI (BEN GURION UNIVERSITY) 
Twisted Deformation Quantization of Algebraic Varieties 

October 07, 2008, 3 pm at MIT (4231) 
FACULTY COLLOQUIUM 
CLIFF TAUBES (HARVARD) 
Inexpensive quantum field theories 

October 06, 2008, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY SEMINAR 
CLARK BARWICK (HARVARD) 
The Rognes approach to the algebraic Ktheory of the sphere spectrum 

October 03, 2008, 330  430 pm at Science Center, Room 507 
RANDOM MATRIX SEMINARS 
A. EDELMAN (MIT) 
The Random Matrix Technique of Ghosts and Shadows 

October 02, 2008, 310  410 pm at Science Center, Room 232 
THE THURSDAY SEMINAR 
ANATOLY PREYGEL (HARVARD UNIVERSITY) 
A_infinity, associahedra, and little disks 

October 02, 2008, 3  5 pm at Science Center, Room 507 
TRIVIAL NOTIONS SEMINAR 
ERIC WOFSEY () 
How I Learned to Stop Worrying and Love Transfinite Induction 

October 02, 2008, 207 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
TOBY GEE (HARVARD UNIVERSITY) 
The conjectural relationship between Galois representations and automorphic 

October 01, 2008, 3PM at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
SABIN CAUTIS (RICE UNIVERSITY) 
Equivalences from Geometric sl2 Actions 

September 30, 2008, 3 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
WEI SONG (HARVARD UNIVERSITY PHYSICS DEPARTMENT) 
Quantum gravity in Three Dimensions 

September 30, 2008, 430  530 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
DENNIS GAITSGORY (HARVARD) 
Geometric representation theory 

September 29, 2008, 3 pm at Science Center, Room 507 
GUAGE THEORY AND TOPOLOGY 
GIOVANNI FORNI (UNIVERSITY OF MARYLAND) 
On the GreenfieldWallach and Katok conjectures 

September 26, 2008, 330  430 pm at Science Center, Room 507 
TRIVIAL NOTIONS SEMINAR 
YI LI () 
Combinatorics of Hodge Integrals 

September 25, 2008, 207 PM at Science Center, Room 507 
RANDOM MATRIX COURSE AND SEMINARS 
VAHID TAROKH (DEAS, HARVARD) 
Shannon Theoretic Approach to Sparse Representation, Sparse Signal detection and Compressed Sampling 

September 25, 2008, 310 pm at Science Center, Room 232 
THE THURSDAY SEMINAR 
DENIS AUROUX (MIT) 
An overview of Lagrangian Floer homology 

September 25, 2008, 3  5 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
TAKAYUKI ODA (UNIVERSITY OF TOKYO) 
Spherical functions of chomological automprphic forms, case sudies for the groups Sp(2,R) and SU(2,2) 

September 24, 2008, 3PM at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
JANOS KOLLAR (PRINCETON) 
Cremona transformations and homeomorphisms of topological surfaces 

September 23, 2008, 3 pm at MIT (4231) 
SPECIAL LECTURE AT HARVARD 
HEISUKE HIRONAKA () 
Resolution of Singularities of Algebraic varieties over characteristic p 

September 22, 2008, 9 AM at Science Center, Room 507 
THE THURSDAY SEMINAR 
PAUL SEIDEL () 
Introduction to the Fukaya category 

September 18, 2008, 3  5 pm at Science Center, Room 507 
RANDOM MATRIX COURSE AND SEMINARS 
JOSE RAMIREZ (UNIVERSIDAD DE COSTA RICA AND HARVARD) 
Diffusion limits of eigenvalues of random matrices 

September 18, 2008, 310  410 pm at Science Center, Room 232 
NUMBER THEORY SEMINAR 
FLORIAN HERZIG (NORTHWESTERN UNIVERSITY) 
Weight Cycling and Serretype Conjectures 

September 17, 2008, 3 PM at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
MARK GROSS (UNIVERSITY OF CALIFORNIA SAN DIEGO) 
Mirror symmetry for P^2 and tropical geometry 

September 16, 2008, 430 pm at Science Center, Room 507 
ALGEBRAIC GEOMETRY SEMINAR 
DAVID SPEYER (MIT) 
Positroid Varieties  a Beautiful Stratification of the Grassmannian 

September 16, 2008, 3 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
BENEDICT GROSS (HARVARD UNIVERSITY) 
Integral zeta values and the number of automorphic representations 

September 10, 2008, 3PM at Science Center, Room 232. Please notice change of place for this Wednesday only. 
DIFFERENTIAL GEOMETRY SEMINAR 
KWOK WAI CHEN (HARVARD UNIVERSITY) 
SYZ Mirror Transformation 

September 09, 2008, 430 PM at Science Center, Room 232. PLEASE NOTICE THE CHANGE IN PLACE THIS TIME ONLY. 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
MARK GROSS (UC SAN DIEGO) 
Mirror symmetry via degenerations 

September 09, 2008, 3 pm at MIT (4231) 
DIFFERENTIAL GEOMETRY SEMINAR 
JENS HOPPE (KTH STOCKHOLM) 
Membrane Equations and Singularities 

June 06, 2008, 4 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
TOSHIYUKI KOBAYASHI (TOKYO AND HARVARD) 
Restriction of unitary representations of real reductive groups 

May 28, 2008, 3  4 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
KIRAN S. KEDLAYA (MIT) 
Semistable reduction for overconvergent Fisocrystals 

May 21, 2008, 3  4 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
MARK REEDER (BC) 
PropSylow subgroups and supercuspidal representations 

May 14, 2008, 3  4 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
GORDAN SAVIN (UTAH) 
On the inverse problem in Galois theory 

May 07, 2008, 3  4 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
PAOLO CASCINI (UC SANTA BARBARA) 
On the Minimal Model Program 

May 06, 2008, 3 pm at MIT (4149) 
THE THURSDAY SEMINAR 
MIKE HOPKINS (HARVARD) 
State sums and 2 dimensional topological field theories (ctd) 

May 01, 2008, 3  5 pm at Science Center, Room 507 
BRANDEISHARVARDMITNORTHEASTERN JOINT MATHEMATICS COLLOQUIUM 
RICHARD HAMILTON (COLUMBIA UNIVERSITY) 
Geometry of the Ricci flow 

May 01, 2008, 430  530 pm at Science Center, Hall D 
SPECIAL EVENT 
A FILM BY AGNES HANDWERK AND HARRIE WILLEMS () 
Wolfgang Doeblin a mathematician rediscovered 

April 30, 2008, 415 PM at Maxwell Dworkin G115, Harvard University 
NUMBER THEORY SEMINAR 
ANDREA MILLER (HARVARD) 
Chow motives of some mixed Shimura varieties 

April 30, 2008, 3  4 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
MIKE ROTH (QUEEN'S UNIVERSITY) 
Cup products for line bundles on complete flag varieties 

April 29, 2008, 3 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
DAVID JERISON (MIT) 
Free boundary problems 

April 28, 2008, 3 PM at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY SEMINAR 
ROSA SENADIAS (MIT) 
Spectral measure and asymptotics of algebraic metrics on toric varieties 

April 25, 2008, 330  430 PM at Science Center, Room 507 
THE THURSDAY SEMINAR 
MIKE HOPKINS (HARVARD) 
State sums and 2 dimensional topological field theories 

April 24, 2008, 3  5 pm at Science Center, Room 507 
NUMBER THEORY SEMNAR 
ROBERT POLLACK (BU) 
Stickelberger elements of nonordinary modular forms 

April 23, 2008, 3  4 PM at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
JAMES BORGER (AUSTRALIAN NATIONAL UNIVERSITY & UNIVERSITY OF CHICAGO) 
Witt vectors, Lamb darings, and absolute algebraic geometry 

April 22, 2008, 3 pm at MIT (4149) 
DIFFERENTIAL GEOMETRY SEMINAR 
ALESSANDRO TOMASIELLO (HARVARD) 
Generalized Complex Geometry and String Vacua 

April 22, 2008, 430 PM at Science Center, Room 507 
FACULTY COLLOQUIUM 
WILFRIED SCHMID (HARVARD) 
LFunctions and functional equations 

April 21, 2008, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
RON STERN (UNIVERSITY OF CALIFORNIA AT IRVINE) 
Reverse engineering 4manifolds 

April 18, 2008, 330  430 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
BRIAN MUNSON (HARVARD) 
Higher order linking & the BlakersMassey theorem II 

April 17, 2008, 3  5 pm at Science Center, Room 507 
BRANDEISHARVARDMITNORHTEASTERN JOINT MATHEMATICS COLLOQUIUM 
RONALD STERN (UNIVERSITY OF CALIFORNIA, IRVINE) 
4manifolds, big and small 

April 17, 2008, 430  530 pm at Science Center, Hall D 
MATHEMATICS EDUCATION SEMINAR SERIES 
WILFRIED SCHMID (HARVARD) 
Current Trends in US K12 Mathematics Education, as Exemplified by TERC's Investigations' Program 

April 17, 2008, 1  2 pm at Science Center, Room 530 
NUMBER THEORY SEMINAR 
DINESH THAKUR (IAS) 
Multizeta and related structures in function field arithmetic 

April 16, 2008, 3  4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
MARCO GUALTIERI (MIT) 
Constructions of Generalized Kaehler Metrics 

April 15, 2008, 430 PM at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
CONCETTINA GALATI (UNIVERSITY OF CALABRIA) 
Degenerating curves and surfaces first results and applications to enumerative geometry of curves on surfaces 

April 15, 2008, 3 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
CUMRUN VAFA (HARVARD) 
Topological Strings 

April 14, 2008, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
YONGBIN RUAN (UNIVERSITY OF MICHIGAN) 
Written equation and its moduli theory 

April 11, 2008, 330  430 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
BRIAN MUNSON (HARVARD) 
Higher order linking & the BlakersMassey theorem 

April 10, 2008, 3  5 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
OLIVER BULTEL (HEIDELBERG) 
PEL moduli spaces without Cvalued points 

April 09, 2008, 3  4 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
RAGNI PIENE (UNIVERSITY OF OSLO) 
Classifying lattice polytopes via toric fibrations 

April 08, 2008, 3 pm at MIT (4149) 
DIFFERENTIAL GEOMETRY SEMINAR 
GIORGIOS DASKALOPOULOS (BROWN UNIVERSITY) 
Harmonic Maps Between Singular Spaces 

April 08, 2008, 430 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
ALBERTO DE SOLE (HARVARD) 
Hamiltonian equation, their integrals of motion and related algebraic structure. 

April 07, 2008, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
ANDRAS STIPSICZ (COLUMBIA) 
Invariants of Legendrian knots in Heegaard Floer homology 

April 04, 2008, 330  430 pm at Science Center, Room 507 
THE THURSDAY SEMINAR 
TOM GOODWILLIE (HARVARD) 
What is pseudoisotopy? (Part 3) 

April 03, 2008, 3  5 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
NOAM ELKIES (HARVARD) 
Genus2 Jacobians with real multiplication via K3 surfaces 

April 02, 2008, 3  4 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
STEPHEN YAU (UNIVERSITY OF ILLINOIS  CHICAGO) 
Classification of Weighted dual graphs with only complete intersection singularities structures 

April 01, 2008, 430 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
CRISTIAN GONZALEZ MARTINEZ (TUFTS UNIVERSITY) 
The HodgePoincare polynomial of the moduli space of stable vector bundles 

April 01, 2008, 3 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
MIKE HOPKINS (HARVARD) 
Algebraic topology and topological field theories 

March 31, 2008, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY SEMINAR 
MAKSIM LIPYANSKI (MIT) 
A semiinfinite cycle construction of Floer homology 

March 21, 2008, 330  430 pm at Science Center, Room 507 
THE MATHEMATICS EDUCATION SEMINAR SERIES 
TOM JUDSON (HARVARD) 
High School Calculus in Japan and the United States 

March 20, 2008, 3  4 pm at Science Center, Room 530 
THE THURSDAY SEMINAR 
TOM GOODWILLIE (HARVARD) 
What is pseudoisotopy? (Part 2) 

March 20, 2008, 3  5 pm at Science Center, Room 507 
NUMBER THEORY SEMINAR 
KAIWEN LAN (HARVARD) 
Arithmetic compactifications of PELtype Shimura varieties 

March 19, 2008, 3  4 pm at Science Center, Room 507 
HARVARDMIT ALGEBRAIC GEOMETRY SEMINAR 
FRED VAN DER WYCK (HARVARD) 
Moduli of curves with prescribed normalization and singularities 

March 18, 2008, 3 pm at Science Center, Room 507 
DIFFERENTIAL GEOMETRY SEMINAR 
MUTAO WANG (COLUMBIA UNIVERSITY) 
Isometric Embeddings and QuasiLocal Mass 

March 18, 2008, 430 pm at Science Center, Room 507 
FACULTY COLLOQUIUM 
TOSHIYUKI KOBAYASHI (HARVARD) 
Existence Problem of Compact Locally Symmetric Spaces 

March 17, 2008, 3 pm at Science Center, Room 507 
GAUGE THEORY AND TOPOLOGY 
VER 