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arxiv: math/0503489 · v2 · submitted 2005-03-23 · 🧮 math.GR

Isolated subsemigroups in the variants of T_n

classification 🧮 math.GR
keywords isolatedsemigroupsubsemigroupsclassifycompletelyconsideredconvexn-element
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We classify all isolated, completely isolated, and convex subsemigroups in the semigroup T_n of all transformations of an n-element set, considered as the semigroup with respect to a sandwich operation.

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