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Proceedings of the American Mathematical Society

ISSN 1088-6826(online) ISSN 0002-9939(print)



Categorical semigroups

Authors: F. R. McMorris and M. Satyanarayana
Journal: Proc. Amer. Math. Soc. 33 (1972), 271-277
MSC: Primary 20M10
MathSciNet review: 0292980
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Abstract: The main purpose of this paper is to describe some properties of categorical semigroups, commutative semigroups which are categorical at zero, and determine the structure of commutative categorical semigroups. We also investigate whether Petrich's tree condition, for categorical semigroups which are completely semisimple inverse semigroups, is necessary for arbitrary categorical semigroups.

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Keywords: Categorical ideals, categorical semigroups, semigroups categorical at zero
Article copyright: © Copyright 1972 American Mathematical Society

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