English

Strata and almost special representations

Representation Theory 2024-09-25 v2

Abstract

We show how to attach to any stratum of a reductive group a (small) finite group. We also show that in the simply laced case the set of strata is in bijection with a subset of the set of almost special representations of the Weyl group. (This is the same as version 1 except that the abstract has been corrected.)

Keywords

Cite

@article{arxiv.2407.20960,
  title  = {Strata and almost special representations},
  author = {G. Lusztig},
  journal= {arXiv preprint arXiv:2407.20960},
  year   = {2024}
}

Comments

9 pages

R2 v1 2026-06-28T17:58:23.287Z