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JOURNALS // Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica // Archive

Bul. Acad. Ştiinţe Repub. Mold. Mat., 2011 Number 3, Pages 69–76 (Mi basm293)

This article is cited in 3 papers

On conjugate sets of quasigroups

Tatiana Popovich

Institute of Mathematics and Computer Science, Academy of Sciences of Moldova, Chişinău, Moldova

Abstract: It is known that the set of conjugates (the conjugate set) of a binary quasigroup can contain 1, 2, 3 or 6 elements. We establish a connection between different pairs of conjugates and describe all six possible conjugate sets, with regard to the equality (“assembling”) of conjugates. Four identities which correspond to the equality of a quasigroup to its conjugates are pointed out. Every conjugate set is characterized with the help of these identities. The conditions of the equality of a $T$-quasigroup to conjugates are established and some examples of $T$-quasigroups with distinct conjugate sets are given.

Keywords and phrases: quasigroup, $T$-quasigroup, conjugate, parastrophe, identity.

MSC: 20N05, 05B15

Received: 30.03.2011

Language: English



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