The Vagner-Preston representation of a block-group

Citation:
Fernandes, Vítor H. "The Vagner-Preston representation of a block-group." Southeast Asian Bull. Math.. (In Memorial of Professor Guo Yuqi 1940-2019) (In Press).

Abstract:

In this short note we construct an extension of the Vagner-Preston representation for block-groups and show that its kernel is the largest congruence that separates regular elements.