English

A classification of unipotent spherical conjugacy classes in bad characteristic

Group Theory 2009-06-30 v1 Representation Theory

Abstract

Let G be a simple algebraic group over an algebraically closed field k of bad characteristic. We classify the spherical unipotent conjugacy classes of G. We also show that if the characteristic of k is 2, then the fixed point subgroup of every involutorial automorphism (involution) of G is a spherical subgroup of G.

Keywords

Cite

@article{arxiv.0906.5063,
  title  = {A classification of unipotent spherical conjugacy classes in bad characteristic},
  author = {Mauro Costantini},
  journal= {arXiv preprint arXiv:0906.5063},
  year   = {2009}
}
R2 v1 2026-06-21T13:18:31.975Z