Introduction to spherical varieties (1)

Locally Symmetric Spaces Seminar
Topic:Introduction to spherical varieties (1)
Speaker:Michal Zydor
Affiliation:Weizmann Institute of Science
Date:Tuesday, January 30
Time/Room:10:00am - 12:00pm/

I will give a brief introduction to spherical varieties. With a view towards understanding the geometry of the moment map, I'll talk about the local structure theorem for spherical varieties. More concretely, if X is a spherical G-variety and B a Borel subgroup of G, the theorem roughly states that the open B-orbit has a very pleasant geometric structure generalizing the open Bruhat cell in the case of GxG acting on X = G.