SMS scnews item created by Kevin Coulembier at Tue 28 Nov 2017 1757
Type: Seminar
Modified: Tue 28 Nov 2017 1800
Distribution: World
Expiry: 9 Jan 2018
Calendar1: 1 Dec 2017 1430-1530
CalLoc1: Carslaw 375
CalTitle1: Algebra Seminar: Quasisemisimple classes
Auth: (kcou7211) in SMS-WASM

Algebra Seminar: Michel -- Quasisemisimple classes

Jean Michel (Universite Denis Diderot)

Friday 1 December, 2:30-3:30pm, Place: Carslaw 375

Title: Quasisemisimple classes

Abstract: This  is  a  report  on  joint  work  with Francois Digne. Quasisemisimple
elements  are  a  generalisation  of  semisimple  elements  to disconnected
reductive  groups (or equivalently, to algebraic automorphisms of reductive
groups).  In the setting  of reductive groups  over an algebraically closed
field,  we discuss the classification of quasisemisimple classes, including
isolated and quasi-isolated ones. The talk will start with the basic theory
of non-connected reductive groups.

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