Product Expansions Redux
Group Theory
2021-10-25 v1 Rings and Algebras
Abstract
We introduce a generalization of the product expansion of a finite semigroup. As an application, we provide an alternative proof of the decidability of pointlike sets for pseudovarieties consisting of semigroups whose subgroups all belong to a given decidable pseudovariety of groups.
Cite
@article{arxiv.2110.11513,
title = {Product Expansions Redux},
author = {Karsten Henckell and Samuel Herman},
journal= {arXiv preprint arXiv:2110.11513},
year = {2021}
}
Comments
21 pages