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The determination of all varieties consisting of absolutely closed semigroups


Author: P. M. Higgins
Journal: Proc. Amer. Math. Soc. 87 (1983), 419-421
MSC: Primary 20M07
MathSciNet review: 684630
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Abstract: An example is given of a right normal band that is not absolutely closed. This enables us to determine all varieties of semigroups that consist entirely of absolutely closed semigroups.


References [Enhancements On Off] (What's this?)

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DOI: https://doi.org/10.1090/S0002-9939-1983-0684630-8
Article copyright: © Copyright 1983 American Mathematical Society