@Article{CMR-33-97,
author = {Liu , Jingguo and Zhang , Jinling},
title = {$\cal P$-Congruence-Free Epigroups},
journal = {Communications in Mathematical Research },
year = {2019},
volume = {33},
number = {2},
pages = {97--109},
abstract = {<p style="text-align: justify;">Let $\cal P$ denote the equivalence relation on an epigroup in which any of its classes consists precisely of those elements owning the same pseudo-inverse. The purpose of the paper is to characterize epigroups on which any&nbsp; congruence either&nbsp; contains $\cal P$ or its join with $\mathcal P$ is the identity relation on epigroups. As a special subclass of epigroups, completely 0-simple semigroups having the same property are also described.</p><p><br/></p>},
issn = {2707-8523},
doi = {https://doi.org/10.13447/j.1674-5647.2017.02.01},
url = {http://global-sci.org/intro/article_detail/cmr/13410.html}
}