Previous Conferences & Workshops

Mar
29
2021

Workshop on Representation Theory and Geometry

Towards canonical bases in homology of symplectic resolutions
Roman Bezrukavnikov
2:00pm|Virtual

I will describe a program aimed at understanding numerics of representations of quantized symplectic resolutions in positive characteristic. A key ingredient is a generalization of the action of the affine braid group on the derived category of...

Mar
29
2021

Workshop on Representation Theory and Geometry

2:00pm|Virtual Event via Zoom
Organizers:

The workshop was organized by Geordie Williamson(IAS/University of Sydney) and took place virtually.

Geometric representation theory has proved itself to be an unreasonably effective tool in pure mathematics. This conference (the...

Mar
29
2021

Computer Science/Discrete Mathematics Seminar I

Approximating Max Cut with Subexponential Linear Programs
Tselil Schramm
11:15am|Remote Access - see Zoom link below

In the max cut problem, we are given an n-vertex graph and we are asked what is the maximum fraction of edges "cut" by any partition of the vertices? This problem can be reformulated as an optimization problem over the cut polytope, which has...

Mar
26
2021

Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar

Three 20min research talks
Jesse Huang, Shaoyun Bai and Thomas Melistas
9:15am|Remote Access

Jesse Huang (UIUC), Variation of FLTZ skeleta

In this short talk, I will discuss an interpolation of FLTZ skeleta mirror to derived equivalent toric varieties. This is joint work with Peng Zhou.

Shaoyun Bai (Princeton), $SU(n)$–Casson invariants...

Mar
25
2021

Joint IAS/Princeton University Number Theory Seminar

The local Gan-Gross-Prasad conjecture for real unitary groups
Hang Xue
4:30pm|Remote Access

A classical branching theorem of Weyl describes how an irreducible representation of compact $U(n+1)$ decomposes when restricted to $U(n)$. The local Gan-Gross-Prasad conjecture provides a conjectural extension to the setting of representations of...

Mar
24
2021

Mathematical Conversations

Surfaces and Point Processes
Jayadev Athreya
5:30pm|Remote Access

We'll give several concrete examples of how to go from the geometry of surfaces to the study of point processes, following work of Siegel, Veech, Masur, Eskin, Mirzakhani, Wright, and others. We'll discuss how this "probabilistic" perspective helps...

Mar
24
2021

Geometric and Modular Representation Theory Seminar

Parabolic version of the two realizations theorem and applications to modular representation theory
Ivan Loseu
3:00pm|Simonyi Hall 101 and Remote Access

The goal of this talk is two-fold. We state a parabolic version of the two realizations theorem and sketch a proof. This version relates Iwahori-constructible sheaves on parabolic affine flag variety to coherent sheaves on a parabolic version of the...