Abstract:
We describe all interassociates of a free commutative semigroup. Each interassociate of a free commutative semigroup is proved to be a variant of it or coincides with that semigroup. Conditions are found for the isomorphy of two variants of a free commutative semigroup.
Keywords:variant of a semigroup, interassociativity, free commutative semigroup.
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