CMSA Quantum Matter in Mathematics and Physics: Exotic new animals in the CFT zoo: quasiparticles and anisotropic scaling
April 21, 2021 10:30 amSpeaker: Sergei Gukov
Zoom: https://harvard.zoom.us/j/977347126
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Announcements - All
Group actions and stability on elliptic surfaces
April 20, 2021 9:00 pmSpeaker: Jason Lo
There are two natural group actions on the Bridgeland stability manifold of a triangulated category: a left action by the group of autoequivalences, and a right action by the universal...
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CMSA Math Science Literature Lecture Series
April 20, 2021 9:00 amSpeaker: Dan Freed
TITLE: The Atiyah-Singer Index Theorem ABSTRACT: The story of the index theorem ties together the Gang of Four— Atiyah, Bott, Hirzebruch, and Singer—and lies at the intersection of analysis, geometry, and...
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CMSA Computer Science for Mathematicians: EigenGame: SVD as a Nash Equilibrium
April 20, 2021 11:30 amSpeaker: Ian Gemp
We present a novel view on singular value decomposition (SVD) as a competitive game in which each approximate singular vector is controlled by a player whose goal is to maximize...
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Emerging frontiers in nuclear magnetic resonance
April 20, 2021 10:00 amSpeaker: Haribabu Arthanari
Nuclear Magnetic Resonance (NMR) is a powerful spectroscopic technique that provides information about matter at an atomic resolution. One of the applications of NMR is to decipher the molecular architecture of biomolecules including nucleic...
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CMSA Mathematical Physics Seminar: Branching Rules and Young Tableaux Methods: 10D & 11D Supergravity
April 19, 2021 10:00 amSpeaker: Sze-Ning Hazel Mak
In this talk, I will review 4D, N = 1 off-shell supergravity. Then I present explorations to construct 10D and 11D supergravity theories in two steps. The first step is...
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Joint Dept. of Mathematics and CMSA Random Matrix & Probability Theory Seminar: Fluctuations in local quantum unique ergodicity for generalized Wigner matrices
April 16, 2021 2:00 pmSpeaker: Patrick Lopatto
In a disordered quantum system, delocalization can be understood in many ways. One of these is quantum unique ergodicity, which was proven in the random matrix context by Bourgade and...
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CMSA Math Science Literature Lecture Series
April 16, 2021 1:00 pmSpeaker: Yi Ma
TITLE: Deep Networks from First Principles ABSTRACT: In this talk, we offer an entirely “white box’’ interpretation of deep (convolution) networks from the perspective of data compression (and group invariance). In...
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CMSA Interdisciplinary Science Seminar: Weak solutions to the isentropic system of gas dynamics
April 15, 2021 9:00 amSpeaker: Cheng Yu
In this talk, I will discuss the global weak solutions to the isentropic system of gas dynamics: existence and non-uniqueness. In the first part, we generalized the renormalized techniques introduced...
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On the cohomology of moduli of abelian varieties
April 15, 2021 4:30 pmSpeaker: Melody Chan
I’ll discuss recent work using tropical techniques to find new rational cohomology classes in moduli spaces A_g of abelian varieties, building on previous joint work with Galatius and Payne on M_g. I...
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