English

Modular Character Sheaves on Reductive Lie Algebras

Representation Theory 2024-07-23 v1

Abstract

Mirkovi\'c introduced the notion of character sheaves on a Lie algebra. Due to their simple geometric characterization, character sheaves on Lie algebras can be thought of as a simplified model for Lusztig's theory of character sheaves on algebraic groups. We extend the theory to the case of modular coefficients. Along the way, we will reprove some of Mirkovi\'c's results and provide connections with the modular generalized Springer correspondence of Achar, Juteau, Riche, and Williamson.

Keywords

Cite

@article{arxiv.2407.14678,
  title  = {Modular Character Sheaves on Reductive Lie Algebras},
  author = {Colton Sandvik},
  journal= {arXiv preprint arXiv:2407.14678},
  year   = {2024}
}

Comments

46 pages

R2 v1 2026-06-28T17:47:57.825Z