H-Coextensions in the category of compact semigroups.
J.H. Carruth, C.E. Clark (1974)
Semigroup forum
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J.H. Carruth, C.E. Clark (1974)
Semigroup forum
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Jakobsen, Per K., Lychagin, V.V. (2005)
Lobachevskii Journal of Mathematics
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Jerry R. Beehler, Arnold Johanson (1976)
Mathematica Slovaca
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Antoni Chronowski, Miroslav Novotný (1995)
Archivum Mathematicum
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In this paper the notion of a ternary semigroup of morphisms of objects in a category is introduced. The connection between an isomorphism of categories and an isomorphism of ternary semigroups of morphisms of suitable objects in these categories is considered. Finally, the results obtained for general categories are applied to the categories and which were studied in [5].
Ladislav Skula (2003)
Mathematica Slovaca
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N.M. Khan (1982)
Semigroup forum
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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...
D.R. Brown, J.A. Hildebrant (1990)
Semigroup forum
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