English

On the modular Plesken Lie algebra

Representation Theory 2024-06-21 v1

Abstract

Let G be a finite group. The Plesken Lie algebra L[G] is a subalgebra of the complex group algebra C[G] and admits a direct-sum decomposition into simple Lie algebras based on the ordinary character theory of G. In this paper we review the known results on L[G] and related Lie algebras, as well as introduce a conjecture on a characteristic p analog L_p[G], with a focus on when p divides the order of G.

Keywords

Cite

@article{arxiv.2406.14493,
  title  = {On the modular Plesken Lie algebra},
  author = {John Cullinan},
  journal= {arXiv preprint arXiv:2406.14493},
  year   = {2024}
}
R2 v1 2026-06-28T17:13:43.283Z