Cancellable elements of the lattices of varieties of semigroups and epigroups
V. Yu. ShaprynskiiD. V. SkokovB. M. Vernikov
所有作者
V. Yu. ShaprynskiiD. V. SkokovB. M. Vernikov
文献摘要
We completely determine all semigroup [epigroup] varieties that are
cancellable elements of the lattice of all semigroup [respectively epigroup]
varieties.