Isolated subsemigroups in the variants of T_n

Abstract

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.

29 pages/ corrected version

References in corpus (3)

• Transformation Semigroups with the Deformed Multiplication
• Green's relations on the deformed transformation semigroups
• The automorphism group of the sandwich inverse symmetric semigroup

Cited by in corpus (2)

• On Kiselman's semigroup
• Isolated and nilpotent subsemigroups in the variants of $\IS$