Identities determining varieties of semigroups with completely regular power.
A semigroup \(S\) is said to be have a completely regular power if the semigroup \(S^n\) is completely regular for some positive integer \(n\). The authors give a transparent classification of semigroup identities \(u=v\) such that every semigroup satisfying \(u=v\) has a completely regular power.
semigroups with completely regular powers
scientific article; zbMATH DE number 5886845