Previous Special Year Seminar

May
13
2021

Quantum Groups Seminar

Kazhdan-Lusztig equivalence
Pablo Boixeda Alvarez
4:00pm|Remote Access

The talk introduces the Kazhdan-Lusztig equivalence between the Kazhdan-Lusztig category of representations of affine algebra and category of modules over the quantum group.

May
12
2021

Geometric and Modular Representation Theory Seminar

Frobenius exact symmetric tensor categories
Pavel Etingof
3:00pm|Simonyi Hall 101 and Remote Access

I will report on a joint work in progress with K. Coulembier and V. Ostrik. We show that a symmetric tensor category in characteristic $p > 0$ admits a fiber functor to the Verlinde category (semisimplification of $Rep(Z/p)$) if and only if it has...

May
11
2021

SL2 Seminar

Automorphic gluing functor in Betti geometric Langlands
David Nadler
4:00pm|Remote Access

I'll discuss joint work with Zhiwei Yun constructing a natural functor from the automorphic category of a nodal curve to the automorphic category of a smoothing. The results depend on the microlocal geometry of sheaves with nilpotent singular...

May
06
2021

Quantum Groups Seminar

Kazhdan-Lusztig category
Jin-Cheng Guu
4:00pm|Remote Access

Continuation from last time.

May
05
2021

Geometric and Modular Representation Theory Seminar

Towards a modular "2 realizations" equivalence
Simon Riche
7:00am|Remote Access

I will report on a project joint with Roman Bezrukavnikov (and partly with Laura Rider) aiming at constructing a variant for positive-characteristic coefficients of the equivalence constructed by Bezrukavnikov in "On two geometric realizations of an...