Unipotent character sheaves and strata of a reductive group
Representation Theory
2023-11-02 v6
Abstract
Let H be a connected reductive group over an algebraically closed field. We define a surjective map from the set CS(H) of unipotent character sheaves on H (up to isomorphism) to the set of strata of H. To do this we use the generalized Springer correspondence. We also give a new parametrization of CS(H) in terms of data coming from bad characteristic. Some minor errors corrected.
Keywords
Cite
@article{arxiv.2210.14422,
title = {Unipotent character sheaves and strata of a reductive group},
author = {G. Lusztig},
journal= {arXiv preprint arXiv:2210.14422},
year = {2023}
}
Comments
16 pages