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Singularities of nilpotent Slodowy slices and collapsing levels for W-algebras.
时间  Datetime
2019-09-13 16:00 — 17:00 
地点  Venue
Middle Lecture Room(703)
报告人  Speaker
Anne Moreau
单位  Affiliation
University of Lille
邀请人  Host
Cuipo Jiang
报告摘要  Abstract

Just as nilpotent orbit closures in simple Lie algebra, nilpotent Slodowy slices play a significant role

in representation theory and in the theory of symplectic singularities. In other direction, it is known that there

appear as associated variety of W-algebras. It is also known that they appear as the Higgs branches of the

Argyres-Douglas theories in 4d N = 2 SCFTs. In my talk, I will explain how these facts are related, and how

we can use this to study collapsing levels for W-algebras, and related conjectures. This is based on a joint work in progress with Tomoyuki Arakawa.