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Matematicheskie Zametki, 1968, Volume 3, Issue 6, Pages 663–670
(Mi mzm6727)
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This article is cited in 19 scientific papers (total in 19 papers)
Examples of varieties of semigroups
V. L. Murskii Applied Mathematics Institute, Academy of Sciences of the USSR
Abstract:
An example of a variety $\mathfrak M$ of semigroups is formulated, where $\mathfrak M$ is defined by a finite number of identity relations for which the set of all identities (here strictly in two variables $x$, $y$) that hold on all semigroups of $\mathfrak M$ is nonrecursive. It is shown how to formulate similar varieties of semigroups with 1.
Received: 19.01.1968
Citation:
V. L. Murskii, “Examples of varieties of semigroups”, Mat. Zametki, 3:6 (1968), 663–670; Math. Notes, 3:6 (1968), 423–427
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https://www.mathnet.ru/eng/mzm6727 https://www.mathnet.ru/eng/mzm/v3/i6/p663
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