Coextensive varieties via Central Elements
Category Theory
2020-12-23 v1
Abstract
In this paper we use the theory of central elements in order to provide a characterization for coextensive varieties. In particular, if the variety is of finite type, congruence-permutable and its class of directly indecomposable members is universal, then coextensivity is equivalent to be a variety of shells.
Cite
@article{arxiv.2012.11800,
title = {Coextensive varieties via Central Elements},
author = {W. J. Zuluaga Botero},
journal= {arXiv preprint arXiv:2012.11800},
year = {2020}
}