Parabolic AGT correspondence from critical stable envelope
Organizer
Speaker
Yehao Zhou
Time
Tuesday, April 7, 2026 3:20 PM - 4:20 PM
Venue
A3-3-201
Online
Zoom 559 700 6085
(BIMSA)
Abstract
Negut formulated and proved an parabolic AGT correspondence, namely, certain q-deformed W-algebra acts on the equivariant K-theory of the moduli space of parabolic sheaves on P^1\times P^1 (a.k.a. affine Laumon space). The cohomological version remains open. In this talk I will outline a proof of the cohomological version of parabolic AGT in the rectangular case. A key ingredient in the proof is the critical stable envelope developed in my recent joint work with Yalong Cao, Andrei Okounkov, and Zijun Zhou.