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 |
. |
Category:
|
math |
. |
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 |
. |
Date available:
|
2021-02-25T12:49:13Z |
Last updated:
|
2023-01-02 |
Stable URL:
|
http://hdl.handle.net/10338.dmlcz/148666 |
. |
Reference:
|
[1] Belousov V. D.: The group associated with a quasigroup.Mat. Issled. 4 (1969), no. 3, 21–39 (Russian). MR 0262407 |
Reference:
|
[2] Dénes J., Keedwell A. D.: Latin Squares and Their Applications.Academic Press, New York, 1974. MR 0351850 |
Reference:
|
[3] Duplák J.: On quasi-identities of transitive quasigroups.Math. Slovaca 34 (1984), no. 3, 281–294. MR 0756985 |
Reference:
|
[4] Duplák J.: Quasigroups determined by balanced identities of length $\leqslant 6$.Czechoslovak Math. J. 36(111) (1986), no. 4, 599–616. MR 0863190, 10.21136/CMJ.1986.102119 |
Reference:
|
[5] Duplák J.: A parastrophic equivalence in quasigroups.Quasigroups Related Systems 7 (2000), 7–14. MR 1848538 |
Reference:
|
[6] Krainichuk H., Tarkovska O.: Semi-symmetric isotopic closure of some group varieties and the corresponding identities.Bul. Acad. Ştiinţe Repub. Mold. Mat. Number 3(85) (2017), 3–22. MR 3760535 |
Reference:
|
[7] Smith J. D. H.: An introduction to quasigroups and their representations.Studies in Advanced Mathematics, Chapman & Hall/CRC, Boca Raton, 2007. MR 2268350 |
Reference:
|
[8] Sokhatsky F. M.: On pseudoisomorphy and distributivity of quasigroups.Bul. Acad. Ştiinţe Repub. Mold. Mat. 2(81) (2016), 125–142. MR 3570801 |
Reference:
|
[9] Sokhatsky F. M.: Parastrophic symmetry in quasigroup theory.Visnik DonNU. Ser. A Natural Sciences 1–2 (2016), 70–83. |
Reference:
|
[10] Sokhatsky F. M., Lutsenko A. V.: The bunch of varieties of inverse property quasigroups.Visnik DonNU. Ser. A Natural Sciences 1–2 (2018), 56–69. |
. |