English

Perfect monoids with zero and categories of $S$-acts

Group Theory 2021-05-06 v1 Category Theory

Abstract

In this paper, we study the relationship between the two main categories of SS-acts for a monoid SS with zero from the viewpoint of existence of projective covers and the equivalence is proven. Furthermore, monoids with zeros over which all compact acts are cyclic are characterized.

Keywords

Cite

@article{arxiv.2105.02159,
  title  = {Perfect monoids with zero and categories of $S$-acts},
  author = {Josef Dvořák and Jan Žemlička},
  journal= {arXiv preprint arXiv:2105.02159},
  year   = {2021}
}