1994•Journal of the Australian Mathematical Society Series A Pure Mathematics and StatisticsOpen access

Injective endomorphisms of 𝒢x-normal semigroups: finite defects

Inessa Levi

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Abstract

Abstract A semigroup of transformations of an infinite set X is called 𝒢x-normal if S is invariant under conjugations by permutations of X. In this paper we describe injective endomorphisms of 𝒢x-normal semigroups of total one-to-one transformations f such that the range of f has a finite non-empty complement in X.

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Abstract A semigroup of transformations of an infinite set X is called 𝒢x-normal if S is invariant under conjugations by permutations of X. In this paper we describe injective endomorphisms of 𝒢x-normal semigroups of total one-to-one transformations f such that the range of f has a finite non-empty complement in X.

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Available abstract

Abstract A semigroup of transformations of an infinite set X is called 𝒢x-normal if S is invariant under conjugations by permutations of X. In this paper we describe injective endomorphisms of 𝒢x-normal semigroups of total one-to-one transformations f such that the range of f has a finite non-empty complement in X.

Key concepts: Endomorphism, Injective function, Mathematics, Semigroup, Complement (music), Invariant (physics), Pure mathematics, Special classes of semigroups

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