Vortrag im Schwerpunkt Reelle Geometrie und Algebra
Freitag, 13. Februar 2009, um 14:00 Uhr in F426 (Schwerpunktkolloquium)
(abweichende Uhrzeit!) Nikita Semenov (München) Endliche Untergruppen der algebraischen Gruppen und kohomologische Invarianten
Let G be a linear algebraic group over a field k of characteristic zero. The classification of finite subgroups of G over
an algebraic closure of k was obtained by Aschbacher, Griess, Ryba, Serre, ... in the 90ies. At the same time J.-P. Serre
suggested to study finite subgroups of linear groups over arbitrary fields. He proved several general statements and posed
several problems in the context of his classification program.
In the talk I will give an overview of Serre's approach and give a solution of one of his problems.
