Previous Conferences & Workshops

Nov
18
2020

Mathematical Conversations

Higher order Fourier analysis and generalizations of Szemerédi's theorem
5:30pm|Remote Access

Several of the most important problems in combinatorial number theory ask for the size of the largest subset of some abelian group or interval of integers lacking points in a fixed arithmetic configuration. One example of such a question is, "What...

Nov
18
2020

Virtual Workshop on Recent Developments in Geometric Representation Theory

Stability and Periodicity in Modular Representation Theory
5:00pm|Wolfensohn Hall and Remote Access

I will review certain stabilization phenomena in the characteristic zero representation theory of general linear and symmetric groups as the rank tends to infinity. Then I will give a survey of some results and conjectures about analogs of these in...

Nov
18
2020

Virtual Workshop on Recent Developments in Geometric Representation Theory

2-Verma modules
Gregoire Naisse and Pedro Vaz
2:00pm|Wolfensohn Hall and Remote Access

Categorification of integrable representations of quantum Kac--Moody algebras is a relatively well-developed subject nowadays, which has found several applications, in particular to low-dimensional topology. The story outside of the integrable world...

Nov
18
2020

Stability and Testability

Surface groups are flexibly stable
Nir Lazarovich
11:00am|Remote Access

In this talk I will present a joint work with Arie Levit and Yair Minsky on flexible stability of surface groups. The proof will be geometric in nature and will rely on an analysis of branched covers of hyperbolic surfaces. Along the way we will see...

Nov
17
2020

SL2 Seminar

No seminar: workshop
3:00pm|Remote Access
Nov
17
2020

Virtual Workshop on Recent Developments in Geometric Representation Theory

Path isomorphisms between quiver Hecke and diagrammatic Bott-Samelson endomorphism algebras
Amit Hazi
11:00am|Wolfensohn Hall and Remote Access

We construct an explicit isomorphism between certain truncations of quiver Hecke algebras and Elias-Williamson's diagrammatic endomorphism algebras of Bott-Samelson bimodules. As a corollary, we deduce that the decomposition numbers of these...