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JOURNALS // Izvestiya Rossiiskoi Akademii Nauk. Seriya Matematicheskaya // Archive

Izv. Akad. Nauk SSSR Ser. Mat., 1987 Volume 51, Issue 1, Pages 171–188 (Mi im1268)

This article is cited in 1 paper

Finite irredundant systems of identities in commutative Moufang loops and distributive Steiner quasigroups

N. I. Sandu


Abstract: An infinite irredundant system of identities in the variety of commutative Moufang loops (and in the variety of distributive Steiner quasigroups) is constructed with the property that no infinite subset is equivalent to a finite subsystem. It follows that the set of subvarieties of the variety of commutative Moufang loops (and of the variety of distributive Steiner quasigroups) has the cardinal of the continuum; it also follows that there is a commutative Moufang loop (a distributive Steiner quasigroup) given by an enumerable set of identical relations, in which the word problem is unsolvable. Finally, the three arguments conjecture is refuted for commutative Moufang loops. In fact, an associator is constructed that is not the identity but has three of its arguments the same.
Bibliography: 10 titles.

UDC: 519.48

MSC: 20N05

Received: 27.09.1984


 English version:
Mathematics of the USSR-Izvestiya, 1988, 30:1, 163–183

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