The geometric Satake isomorphism for twisted reductive groups
Algebraic Geometry and Number Theory Seminar
Date:
Thursday, November 23, 2023 13:00 - 15:00
Speaker:
Timo Richarz (TU Darmstadt)
Location:
Heinzel Seminar Room (I21.EG.101), Office Building West, ISTA
Series:
Mathematics and CS Seminar
Host:
Tamas Hausel
Contact:
Birgit Oosthuizen-Noczil
The geometric Satake isomorphism is frequently used in geometric approaches to the Langlands program. Given a split reductive group, the isomorphism relates certain sheaves on the affine Grassmannian, an infinite dimensional variety, with representations of the Langlands dual group. After an introduction to the subject I speak about versions of the isomorphism for twisted (that is, not necessarily split) reductive groups.