Some operators that preserve the locality of a pseudovariety of semigroups

Abstract

It is shown that if V is a local monoidal pseudovariety of semigroups, then K(m)V, D(m)V and LI(m)V are local. Other operators of the form Z(m)() are considered. In the process, results about the interplay between operators Z(m)() and ()*Dk are obtained.

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