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Algebra and Discrete Mathematics, 2019, Volume 27, Issue 1, Pages 144–154 (Mi adm698)  

This article is cited in 1 scientific paper (total in 1 paper)

RESEARCH ARTICLE

Representations of ordered doppelsemigroups by binary relations

Yurii V. Zhuchoka, Jörg Koppitzb

a Luhansk Taras Shevchenko National University, Gogol square 1, Starobilsk, Ukraine, 92703
b Institute of Mathematics and Informatics, Bulgarian Academy of Sciences, Acad. G. Bonchev St, Bl. 8, 1113 Sofia, Bulgaria
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Abstract: We extend the study of doppelsemigroups and introduce the notion of an ordered doppelsemigroup. We construct the ordered doppelsemigroup of binary relations on an arbitrary set and prove that every ordered doppelsemigroup is isomorphic to some ordered doppelsemigroup of binary relations. In particular, we obtain an analogue of Cayley's theorem for semigroups in the class of doppelsemigroups. We also describe the representations of ordered doppelsemigroups by binary transitive relations.
Keywords: doppelsemigroup, ordered doppelsemigroup, semigroup, binary relation, representation.
Funding agency Grant number
German Academic Exchange Service (DAAD)
The paper was written during the research stay of the first author at the Potsdam University in the frame of the Programme of German Academic Exchange Service (DAAD).
Received: 27.11.2018
Document Type: Article
MSC: 17A30, 06F05, 43A65
Language: English
Citation: Yurii V. Zhuchok, Jörg Koppitz, “Representations of ordered doppelsemigroups by binary relations”, Algebra Discrete Math., 27:1 (2019), 144–154
Citation in format AMSBIB
\Bibitem{ZhuKop19}
\by Yurii~V.~Zhuchok, J\"org~Koppitz
\paper Representations of ordered doppelsemigroups by~binary relations
\jour Algebra Discrete Math.
\yr 2019
\vol 27
\issue 1
\pages 144--154
\mathnet{http://mi.mathnet.ru/adm698}
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