On semigroups having a kernel
Štefan Schwarz (1951)
Czechoslovak Mathematical Journal
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Štefan Schwarz (1951)
Czechoslovak Mathematical Journal
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Dariush Heidari, Marzieh Amooshahi (2013)
Discussiones Mathematicae - General Algebra and Applications
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The concept of Γ-semigroups is a generalization of semigroups. In this paper, we associate two transformation semigroups to a Γ-semigroup and we call them the left and right transformation semigroups. We prove some relationships between the ideals of a Γ-semigroup and the ideals of its left and right transformation semigroups. Finally, we study some relationships between Green's equivalence relations of a Γ-semigroup and its left (right) transformation semigroup.
Shoufeng Wang (2017)
Open Mathematics
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As a generalization of the class of inverse semigroups, the class of Ehresmann semigroups is introduced by Lawson and investigated by many authors extensively in the literature. In particular, Gomes and Gould construct a fundamental Ehresmann semigroup CE from a semilattice E which plays for Ehresmann semigroups the role that TE plays for inverse semigroups, where TE is the Munn semigroup of a semilattice E. From a varietal perspective, Ehresmann semigroups are derived from reduction...
E. D. DeVun (1980)
Semigroup forum
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John Rhodes (1969-1970)
Séminaire Dubreil. Algèbre et théorie des nombres
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B.D. Doytchinov, W.J. Hrusa, S.J. Watson (1997)
Semigroup forum
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M. Munteanu, M. Schwarz (1989)
Semigroup forum
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D.W. Miller (1982)
Semigroup forum
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G. Mashevitzky (1997)
Semigroup forum
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