finite nilsemigroups with modular congruence lattices
;Alexander L. Popovich
south african journal of information management2017Vol. 3pp. -
185
popovich2017uralfinite
Abstract
This paper continues the joint work [2] of the author with P. Jones. We describe all finitely generated nilsemigroups with modular congruence lattices: there are 91 countable series of such semigroups. For finitely generated nilsemigroups a simple algorithmic test to the congruence modularity is obtained.