Previous Conferences & Workshops

Apr
30
2021

Workshop on Topology: Identifying Order in Complex Systems

Twisted topological tangles or: the knot theory of knitting
Elisabetta Matsumoto
2:00pm|Remote Access

The Picard group of the stable module category of a finite group plays a role in many parts of modular representation theory. It was calculated when the group is an abelian $p$-group, by pioneering work of Dade in the 1970's, and a classification...

Apr
29
2021

Joint IAS/Princeton University Number Theory Seminar

On the canonical, fpqc and finite topologies: classical questions, new answers (and conversely)
Yves André
4:00pm|Remote Access

Up to a finite covering, a sequence of nested subvarieties of an affine algebraic variety just looks like a flag of vector spaces (Noether); understanding this « up to » is a primary motivation for a fine study of finite coverings.

The aim of this...

Apr
28
2021

Mathematical Conversations

Math & Computation: some principles, anecdotes and questions
Avi Wigderson
5:30pm|Remote Access

I planned to give a different talk, about recent work I am excited about. But then Helmut asked me to instead talk of "Dreams of mathematics and computer science". And his wish is my command...

I'll describe, mainly through works of some great...

Apr
27
2021

SL2 Seminar

Invariance and monodromy of microlocal sheaves
David Nadler
4:00pm|Remote Access

I'll review results and examples of the invariance and monodromy of microlocal sheaves under mutations of their support. Then I'll suggest some problems in geometric representation theory where we would like to apply such techniques.

Apr
26
2021

Analysis Seminar

Mean curvature flow in high co-dimension
William Minicozzi
4:30pm|Remote Access

Mean curvature flow (MCF) is a geometric heat equation where a submanifold evolves to minimize its area. A central problem is to understand the singularities that form and what these imply for the flow. I will talk about joint work with Toby Colding...