English

Lie algebras whose derivation algebras are simple

Rings and Algebras 2025-01-28 v1 Representation Theory

Abstract

It is well known that a finite-dimensional Lie algebra over a field of characteristic zero is simple exactly when its derivation algebra is simple. In this paper we characterize those Lie algebras of arbitrary dimension over any field that have a simple derivation algebra. As an application we classify the Lie algebras that have a complete simple derivation algebra and are either finite-dimensional over an algebraically closed field of prime characteristic p>3p>3 or Z\mathbb{Z}-graded of finite growth over an algebraically closed field of characteristic zero.

Keywords

Cite

@article{arxiv.2501.15560,
  title  = {Lie algebras whose derivation algebras are simple},
  author = {Jörg Feldvoss and Salvatore Siciliano},
  journal= {arXiv preprint arXiv:2501.15560},
  year   = {2025}
}

Comments

13 pages

R2 v1 2026-06-28T21:18:22.363Z