Congratulations to Harvard math PhD graduate Yunqing Tang, currently an associate professor at University of California, Berkeley, for receiving the 2026 New Horizons in Mathematics...
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It is with heavy hearts that we say farewell to Professor Emeritus Heisuke Hironaka, who passed away in March, 2026 at the age of 94....
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Harvard scored third place among the winning teams at the 86th annual William Lowell Putnam Mathematical Competition. Over 4,300 students from over 480 institutions participated...
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HARVARD-MIT ALGEBRAIC GEOMETRY
GEOMETRY AND QUANTUM THEORY
CMSA EVENTS
NUMBER THEORY
INFORMAL SEMINAR ON DYNAMICS, GEOMETRY AND MODULI SPACES
HARVARD-MIT COMBINATORICS
CMSA Differential Geometry and Physics Seminar
CMSA EVENTS
CMSA FREEDMAN SEMINAR
GAUGE THEORY AND TOPOLOGY
CMSA EVENTS
CMSA QUANTUM FIELD THEORY AND PHYSICAL MATHEMATICS SEMINAR
HARVARD-MIT COMBINATORICS
CMSA COLLOQUIUM
GEOMETRY AND QUANTUM THEORY
CMSA Algebra Seminar
SPECIAL LECTURE, OTHER MATHEMATICS DEPARTMENT EVENTS
SPECIAL LECTURE, OTHER MATHEMATICS DEPARTMENT EVENTS
SPECIAL LECTURE, OTHER MATHEMATICS DEPARTMENT EVENTS
SPECIAL LECTURE, OTHER MATHEMATICS DEPARTMENT EVENTS
CMSA COLLOQUIUM
CMSA NEW TECHNOLOGIES IN MATHEMATICS
CMSA COLLOQUIUM
CMSA EVENTS
ANNOUNCEMENTS, OTHER MATHEMATICS DEPARTMENT EVENTS
CMSA Q&A Seminar
ANNOUNCEMENTS, CONFERENCES
CONFERENCES
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Monday
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Tuesday
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Wednesday
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Thursday
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Friday
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Saturday
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Sunday
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2 events,HARVARD-MIT COMBINATORICSHARVARD-MIT COMBINATORICS
Log-concavity, Sampling, and Lorentzian PolynomialsWhen: March 30, 2026
3:00 pm - 4:00 pm
Where: MIT Room 2-143
Speaker: Jonathan Leake (University of Waterloo)
CMSA QUANTUM FIELD THEORY AND PHYSICAL MATHEMATICS SEMINARCMSA QUANTUM FIELD THEORY AND PHYSICAL MATHEMATICS SEMINAR
K-theoretic stable envelopes, quantum loop groups and wall-crossingsWhen: March 30, 2026
3:00 pm - 4:00 pm
Where: CMSA, 20 Garden St, G102
Speaker: Tianqing Zhu (Columbia University)
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2 events,TRIVIAL NOTIONSTRIVIAL NOTIONS
Knot theory and Knot theoryWhen: March 31, 2026
1:00 pm - 2:00 pm
Where: Science Center 232
Speaker: Oakley Edens
GEOMETRY AND QUANTUM THEORYGEOMETRY AND QUANTUM THEORY
Geome1-shifted Yangians from 1-shifted Lie bialgebrasWhen: March 31, 2026
4:15 pm - 6:30 pm
Where: Science Center 507
Speaker: Vasily Krylov (Harvard)
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4 events,CMSA Q&A SeminarCMSA Q&A Seminar
The First Proof ProjectWhen: April 1, 2026
12:00 pm - 1:00 pm
Where: CMSA, 20 Garden St, Common Room
Speaker: Lauren Williams (Harvard)
NUMBER THEORYNUMBER THEORY
Triangular modular curvesWhen: April 1, 2026
3:00 pm - 4:00 pm
Where: Science Center 507
Speaker: Juanita Duque-Rosero (Boston University)
HARVARD-MIT COMBINATORICSHARVARD-MIT COMBINATORICS
Complementary vectors of doubly Cohen-Macaulay complexesWhen: April 1, 2026
4:15 pm - 5:15 pm
Where: MIT, Room 2-132
Speaker: Matt Larson (Princeton)
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2 events,THURSDAY SEMINARTHURSDAY SEMINAR
Parametry and PrejudiceWhen: April 2, 2026
3:30 pm - 5:30 pm
Where: Science Center 507
Speaker: Lucas Piessevaux (University of Bonn)
ALGEBRAIC DYNAMICSALGEBRAIC DYNAMICS
Bialgebraicity and dynamical Ax-SchanuelWhen: April 2, 2026
4:00 pm - 6:00 pm
Where: Science Center 232
Speaker: Sina Saleh (Harvard University)
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2 events,CMSA MEMBER SEMINARCMSA MEMBER SEMINAR
Failures of Holographic EmergenceWhen: April 3, 2026
12:00 pm - 1:00 pm
Where: CMSA, 20 Garden St, Common Room
Speaker: Elliott Gesteau (Harvard CMSA)
GAUGE THEORY AND TOPOLOGYGAUGE THEORY AND TOPOLOGY
Canonical orientations in Heegaard Floer theory / Quantitative closing lemmasWhen: April 3, 2026
2:15 pm - 4:30 pm
Where: Science Center 507
Speaker: Ciprian Manolescu (Stanford) | Michael Hutchings (UC Berkeley)
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2 events,HARVARD-MIT COMBINATORICSHARVARD-MIT COMBINATORICS
Graph densities, matrices, positivityWhen: April 6, 2026
3:00 pm - 4:00 pm
Where: MIT Room 2-143
Speaker: Fan Wei (Duke University)
CMSA QUANTUM FIELD THEORY AND PHYSICAL MATHEMATICS SEMINARCMSA QUANTUM FIELD THEORY AND PHYSICAL MATHEMATICS SEMINAR
Twistorial constructions of higher genus integrabilityWhen: April 6, 2026
3:00 pm - 4:00 pm
Where: CMSA, 20 Garden St, G102
Speaker: Seraphim Jarov (Perimeter Institute)
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2 events,HARVARD-MIT ALGEBRAIC GEOMETRYHARVARD-MIT ALGEBRAIC GEOMETRY
Perturbation of mixed characteristics test idealsWhen: April 7, 2026
3:00 pm - 4:00 pm
Where: Science Center 507
Speaker: Hanlin Cai (Columbia University)
GEOMETRY AND QUANTUM THEORYGEOMETRY AND QUANTUM THEORY
A Mumford form on infinite GrassmanniansWhen: April 7, 2026
4:15 pm - 6:30 pm
Where: Science Center 507
Speaker: Oswaldo Vázquez (Harvard)
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2 events,NUMBER THEORYNUMBER THEORY
Quadratic Chabauty in higher genusWhen: April 8, 2026
3:00 pm - 4:00 pm
Where: Science Center 507
Speaker: Jennifer Balakrishnan (Boston University)
HARVARD-MIT COMBINATORICSHARVARD-MIT COMBINATORICS
Subgraphs versus Orientations: Infinite families of equidistributionsWhen: April 8, 2026
4:15 pm - 5:15 pm
Where: Science Center Hall E
Speaker: Olivier Bernardi (Brandeis)
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2 events,ALGEBRAIC DYNAMICSALGEBRAIC DYNAMICS
Rational Maps on Elliptic SurfacesWhen: April 9, 2026
4:00 pm - 6:00 pm
Where: Science Center 232
Speaker: Richard Birkett (Brown University)
CMSA Algebra SeminarCMSA Algebra Seminar
Multiplicities of graded families of ideals on Noetherian local ringsWhen: April 9, 2026
4:00 pm - 5:00 pm
Where: CMSA, 20 Garden St, G10
Speaker: Dale Cutkosky (University of Missouri)
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2 events,CMSA MEMBER SEMINARCMSA MEMBER SEMINAR
Quantum topology from dynamicsWhen: April 10, 2026
12:00 pm - 1:00 pm
Where: CMSA, 20 Garden St, Common Room
Speaker: Sunghyuk Park (Harvard CMSA)
GAUGE THEORY AND TOPOLOGYGAUGE THEORY AND TOPOLOGY
Landscape of mirrorsWhen: April 10, 2026
2:15 pm - 4:30 pm
Where: Science Center 507
Speaker: Zhenghao Zhong (SIMIS)
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1 event,HARVARD-MIT COMBINATORICSHARVARD-MIT COMBINATORICS
The largest K_r-free set of vertices in a random graphWhen: April 13, 2026
3:00 pm - 4:00 pm
Where: MIT Room 2-143
Speaker: Marcus Michelen (Northwestern University)
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2 events,TRIVIAL NOTIONSTRIVIAL NOTIONS
Cubic Curves and Cubic Surfaces and Cubic Threefolds and Cubic FourfoldsWhen: April 14, 2026
1:00 pm - 2:00 pm
Where: Science Center 232
Speaker: Elias Sink (Harvard)
GEOMETRY AND QUANTUM THEORYGEOMETRY AND QUANTUM THEORY
Abelian gauge fields and dualityWhen: April 14, 2026
4:15 pm - 6:30 pm
Where: Science Center 507
Speaker: Dan Freed (Harvard)
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4 events,CMSA EVENTS
CMSA Swampland and our UniverseWhen: April 15, 2026 - April 16, 2026
8:00 am - 5:00 pm
Where: CMSA, 20 Garden St, G10
NUMBER THEORYNUMBER THEORY
Applying stratification theorems to counting integral points in thin sets of type IIWhen: April 15, 2026
3:00 pm - 4:00 pm
Where: Science Center 507
Speaker: Katharine Woo (Stanford University)
MATH TABLEMATH TABLE
The Hanging Problem: A group fundamental to artWhen: April 15, 2026
4:30 pm - 5:30 pm
Speaker: Josh Rooney - Harvard
CMSA EVENTSCMSA EVENTS
Millennium Prize Problems Lecture – Peter Sarnak: Riemann HypothesisWhen: April 15, 2026
5:00 pm - 6:00 pm
Where: Science Center Hall C
Speaker: Peter Sarnak (Institute for Advanced Study)
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3 events,HARVARD-MIT COMBINATORICSHARVARD-MIT COMBINATORICS
Total Positivity in Twisted Flag VarietiesWhen: April 16, 2026
3:00 pm - 4:00 pm
Where: Science Center 232
Speaker: Xuhua He (University of Hong Kong)
CMSA Algebra SeminarCMSA Algebra Seminar
Interpolation for points in $\mathbb{P}^N, N\geq 2$When: April 16, 2026
4:00 pm - 5:00 pm
Where: CMSA, 20 Garden St, G10
Speaker: Dipendranath Mahato (Tulane University)
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3 events,CMSA MEMBER SEMINARCMSA MEMBER SEMINAR
Higgs and Coulomb branches: Geometry and Representation TheoryWhen: April 17, 2026
12:00 pm - 1:00 pm
Where: CMSA, 20 Garden St, Common Room
Speaker: Vasily Krylov (Harvard CMSA)
CMSA MEMBER SEMINARCMSA MEMBER SEMINAR
The Intermingling of Symmetry and Parametrization in Matrix Product StatesWhen: April 17, 2026
12:00 pm - 1:00 pm
Where: CMSA, 20 Garden St, Common Room
Speaker: Daniel Spiegel (Harvard)
GAUGE THEORY AND TOPOLOGYGAUGE THEORY AND TOPOLOGY
How to Pick Out the Slicing Degree of Knots Using a SporkWhen: April 17, 2026
2:15 pm - 4:30 pm
Where: Science Center 507
Speaker: Qianhe Qin (Stanford)
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1 event,CMSA QUANTUM FIELD THEORY AND PHYSICAL MATHEMATICS SEMINARCMSA QUANTUM FIELD THEORY AND PHYSICAL MATHEMATICS SEMINAR
Zigzags, adjoints, and bordismsWhen: April 20, 2026
3:00 pm - 4:00 pm
Where: CMSA, 20 Garden St, G02
Speaker: Lorenzo Riva (Harvard CMSA)
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2 events,HARVARD-MIT ALGEBRAIC GEOMETRYHARVARD-MIT ALGEBRAIC GEOMETRY
Singularities in the Ekedahl–Oort stratificationWhen: April 21, 2026
3:00 pm - 4:00 pm
Where: Science Center 507
Speaker: Stefan Reppen (UC Berkeley)
GEOMETRY AND QUANTUM THEORYGEOMETRY AND QUANTUM THEORY
Introduction to A-infty categoriesWhen: April 21, 2026
4:15 pm - 6:30 pm
Where: Science Center 507
Speaker: Ahsan Khan (Harvard CMSA)
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4 events,CMSA EVENTSCMSA EVENTS
CMSA/Tsinghua Math-Science Literature Lecture: Nicolai Reshetikhin, Yau Mathematical Sciences Center, Tsinghua UniversityWhen: April 22, 2026
9:00 am - 10:30 am
Where: Science Center Hall A
Speaker: Nicolai Reshetikhin (Yau Mathematical Sciences Center, Tsinghua University)
NUMBER THEORYNUMBER THEORY
Unlikely ramification of algebraic points on curvesWhen: April 22, 2026
3:00 pm - 4:00 pm
Where: Science Center 507
Speaker: Isabel Vogt (Brown University)
INFORMAL SEMINAR ON DYNAMICS, GEOMETRY AND MODULI SPACESINFORMAL SEMINAR ON DYNAMICS, GEOMETRY AND MODULI SPACES
Fundamental groups of random 3-manifoldsWhen: April 22, 2026
4:00 pm - 6:00 pm
Where: Science Center 530
Speaker: Melanie Wood (Harvard)
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2 events,CMSA Differential Geometry and Physics SeminarCMSA Differential Geometry and Physics Seminar
Boundedness for K-trivial varieties with fibrationsWhen: April 23, 2026
1:30 pm - 2:30 pm
Where: CMSA, 20 Garden St, G10
Speaker: François Greer (MSU)
CMSA EVENTSCMSA EVENTS
Sixth Annual Yip Lecture | Regina BarzilayWhen: April 23, 2026
4:00 pm - 5:00 pm
Where: Science Center Hall A
Speaker: Regina Barzilay (MIT)
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2 events,CMSA FREEDMAN SEMINARCMSA FREEDMAN SEMINAR
Compression Is All You Need: Modeling MathematicsWhen: April 24, 2026
2:00 pm - 4:30 pm
Where: Virtually
Speaker: Mike Freedman (Harvard CMSA)
GAUGE THEORY AND TOPOLOGYGAUGE THEORY AND TOPOLOGY
Some progress towards the stable Khovanov homology of torus knotsWhen: April 24, 2026
3:30 pm - 4:30 pm
Where: Science Center 507
Speaker: Joshua Wang (Princeton)
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4 events,CMSA EVENTS
CMSA Mathematics and Biology II: Mathematics and Science of BehaviorWhen: April 27, 2026 - May 1, 2026
9:00 am - 5:00 pm
Where: CMSA, 20 Garden St, G10
CMSA QUANTUM FIELD THEORY AND PHYSICAL MATHEMATICS SEMINARCMSA QUANTUM FIELD THEORY AND PHYSICAL MATHEMATICS SEMINAR
Higher current algebras and chiral algebrasWhen: April 27, 2026
3:00 pm - 4:00 pm
Where: CMSA, 20 Garden St, G02
Speaker: Charles Young (University of Hertfordshire)
HARVARD-MIT COMBINATORICSHARVARD-MIT COMBINATORICS
A New Proof of the Existence Conjecture and its Applications to Extremal and Probabilistic Design TheoryWhen: April 27, 2026
3:00 pm - 4:00 pm
Where: MIT Room 2-143
Speaker: Luke Postle (University of Waterloo)
CMSA COLLOQUIUMCMSA COLLOQUIUM
Enacted collective cognition: Brainless problem-solving in weaver antsWhen: April 27, 2026
4:30 pm - 5:30 pm
Where: CMSA, 20 Garden St, G10
Speaker: Ofer Feinerman (Weizmann Institute of Science)
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2 events,GEOMETRY AND QUANTUM THEORYGEOMETRY AND QUANTUM THEORY
Geometry and Quantum Theory Seminar: Lorenzo Riva (Harvard CMSA)When: April 28, 2026
4:15 pm - 6:30 pm
Where: Science Center 507
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2 events,CMSA Algebra SeminarCMSA Algebra Seminar
Transcendental Epsilon Multiplicity via Divisor Volumes.When: April 30, 2026
4:00 pm - 5:00 pm
Where: CMSA, 20 Garden St, G10
Speaker: Sudipta Das (Tata Institute of Fundamental Research)
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5 events,SPECIAL LECTURE, OTHER MATHEMATICS DEPARTMENT EVENTSSPECIAL LECTURE, OTHER MATHEMATICS DEPARTMENT EVENTS
Special Lecture: Collusion in AuctionsWhen: May 1, 2026
10:00 am - 10:25 am
Where: Science Center 507
Speaker: Jinho Park (Harvard AB 26)
SPECIAL LECTURE, OTHER MATHEMATICS DEPARTMENT EVENTSSPECIAL LECTURE, OTHER MATHEMATICS DEPARTMENT EVENTS
Special Lecture: Crossing the cut: Approximation on multiple Riemann sheetsWhen: May 1, 2026
10:30 am - 10:55 am
Where: Science Center 507
Speaker: Adelina Andrei (Harvard AB 26)
SPECIAL LECTURE, OTHER MATHEMATICS DEPARTMENT EVENTSSPECIAL LECTURE, OTHER MATHEMATICS DEPARTMENT EVENTS
Special Lecture: Permutations, matrices, and random growthWhen: May 1, 2026
2:00 pm - 2:45 pm
Where: Science Center 507
Speaker: Kevin Yang (Harvard)
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