Incidence Coalgebras: Automorphisms and Derivations
Rings and Algebras
2023-12-12 v1
Abstract
We describe automorphisms and derivations of the incidence coalgebra of the partially ordered set over a field . In this case, the fact is significantly used that the dual algebra of the coalgebra is isomorphic to the incidence algebra of the partially ordered set over the field .
Cite
@article{arxiv.2312.05504,
title = {Incidence Coalgebras: Automorphisms and Derivations},
author = {Piotr Krylov and Askar Tuganbaev},
journal= {arXiv preprint arXiv:2312.05504},
year = {2023}
}