Lie automorphisms of incidence algebras
Rings and Algebras
2021-08-10 v3
Abstract
Let be a finite connected poset and a field. We give a full description of the Lie automorphisms of the incidence algebra . In particular, we show that they are in general not proper.
Keywords
Cite
@article{arxiv.2012.06661,
title = {Lie automorphisms of incidence algebras},
author = {Érica Z. Fornaroli and Mykola Khrypchenko and Ednei A. Santulo},
journal= {arXiv preprint arXiv:2012.06661},
year = {2021}
}
Comments
Minor changes. Accepted for publication in Proceedings of the AMS