On the Bonnaf\'e--Dat--Rouquier Morita equivalence
Group Theory
2018-12-19 v1
Abstract
We prove that the cohomology group of a Deligne-Lusztig variety defines a Morita equivalence in a case which is not covered by the argument by Bonnaf\'e, Dat and Rouquier, specifically we consider the situation for semisimple elements in type whose centralizer has non-cyclic component group.
Keywords
Cite
@article{arxiv.1812.07354,
title = {On the Bonnaf\'e--Dat--Rouquier Morita equivalence},
author = {Lucas Ruhstorfer},
journal= {arXiv preprint arXiv:1812.07354},
year = {2018}
}