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This article is cited in 27 scientific papers (total in 27 papers)
Dimonoids
A. V. Zhuchok National Taras Shevchenko University of Kyiv, The Faculty of Mechanics and Mathematics, Kyiv, Ukraine
Abstract:
It is proved that a system of axioms for a dimonoid is independent and Cayley's theorem for semigroups has an analog in the class of dimonoids. A least separative congruence is constructed on an arbitrary dimonoid endowed with a commutative operation. It is shown that an appropriate quotient dimonoid is a commutative separative semigroup. A least separative congruence on a free commutative dimonoid is characterized. It is stated that each dimonoid with a commutative operation is a semilattice of Archimedean subdimonoids, each dimonoid with a commutative periodic semigroup is a semilattice of unipotent subdimonoids, and each dimonoid with a commutative operation is a semilattice of $a$-connected subdimonoids. Different dimonoid constructions are presented.
Keywords:
dimonoid, dimonoid with commutative operation, free commutative dimonoid, semilattice of subdimonoids, semigroup.
Received: 20.08.2010 Revised: 25.11.2010
Citation:
A. V. Zhuchok, “Dimonoids”, Algebra Logika, 50:4 (2011), 471–496; Algebra and Logic, 50:4 (2011), 323–340
Linking options:
https://www.mathnet.ru/eng/al496 https://www.mathnet.ru/eng/al/v50/i4/p471
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