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Title: Classification of quasigroups according to directions of translations I (English)
Author: Sokhatsky, Fedir
Author: Lutsenko, Alla
Language: English
Journal: Commentationes Mathematicae Universitatis Carolinae
ISSN: 0010-2628 (print)
ISSN: 1213-7243 (online)
Volume: 61
Issue: 4
Year: 2020
Pages: 567-579
Summary lang: English
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Category: math
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Summary: It is proved that every translation in a quasigroup has two independent parameters. One of them is a bijection of the carrier set. The second parameter is called a direction here. Properties of directions in a quasigroup are considered in the first part of the work. In particular, totally symmetric, semisymmetric, commutative, left and right symmetric and also asymmetric quasigroups are characterized within these concepts. The sets of translations of the same direction are under consideration in the second part of the work. Coincidence of these sets defines nine varieties, among them are varieties of $LIP$, $RIP$, $MIP$ and $CIP$ quasigroups. Quasigroups in other five varieties also have some invertibility properties. (English)
Keyword: quasigroup
Keyword: parastrophe
Keyword: parastrophic symmetry
Keyword: parastrophic orbit
Keyword: translation
Keyword: direction
MSC: 20N05
idZBL: Zbl 07332730
idMR: MR4230961
DOI: 10.14712/1213-7243.2021.002
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Date available: 2021-02-25T12:49:13Z
Last updated: 2023-01-02
Stable URL: http://hdl.handle.net/10338.dmlcz/148666
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