Some properties of E-m semigroups.
A. Varisco, Spoletini, A. Cherubini (1979)
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A. Varisco, Spoletini, A. Cherubini (1979)
Semigroup forum
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A. Varisco, Spoletini A. Cherubini (1979)
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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...
A. Nagy (1985)
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B. Billhardt (1992)
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Štefan Schwarz (1951)
Czechoslovak Mathematical Journal
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A. Varisco, A. Cherubini (1981)
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M. Ciric, S. Bogdanovic (1993)
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Xue Ming Ren, Kar-Ping Shum (2000)
Discussiones Mathematicae - General Algebra and Applications
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The concept of strong spined product of semigroups is introduced. We first show that a semigroup S is a rpp-semigroup with left central idempotents if and only if S is a strong semilattice of left cancellative right stripes. Then, we show that such kind of semigroups can be described by the strong spined product of a C-rpp-semigroup and a right normal band. In particular, we show that a semigroup is a rpp-semigroup with left central idempotents if and only if it is a right bin. ...
P.R. Jones (1986)
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