Endomorphism semigroups of some free products

Yu. V. Zhuchok

Fundamentalʹnaâ i prikladnaâ matematika, Tome 17 (2012) no. 3, pp. 51-60.

Résumé

We define the notion of a w-class of semigroups and prove that every endomorphism semigroup of a free product of semigroups from a maximal w-class is isomorphic to a wreath product of a transformation semigroup with some small category.

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