English

Regularity of Unipotent Elements in Total Positivity

Representation Theory 2023-08-16 v1

Abstract

Let GG be a connected reductive group split over R. We show that every unipotent element in the totally nonnegative monoid of G is regular in some Levi subgroups, confirming a conjecture of Lusztig.

Keywords

Cite

@article{arxiv.2308.07859,
  title  = {Regularity of Unipotent Elements in Total Positivity},
  author = {Haiyu Chen and Kaitao Xie},
  journal= {arXiv preprint arXiv:2308.07859},
  year   = {2023}
}

Comments

25 pages

R2 v1 2026-06-28T11:56:11.365Z