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Algebra Logika, 2015 Volume 54, Number 3, Pages 315–325 (Mi al696)

This article is cited in 5 papers

An example of a central simple commutative finite-dimensional algebra with an infinite basis of identities

A. V. Kislitsin

Altai State Pedagogical University, ul. Molodezhnaya 55, Barnaul, 656031, Russia

Abstract: In 1993 I. P. Shestakov came up with the question whether there exists a central simple finite-dimensional algebra over a field of characteristic 0, whose identities are not given by a finite set (Dniester Notebook, Question 3.103). In 2012 I. M. Isaev and the author constructed a desired example, giving an affirmative answer to the question posed. Here research into Shestakov's question is continued for the case of commutative algebras. A seven-dimensional central simple commutative algebra over a field of characteristics 0 having no finite basis of identities is exemplified.

Keywords: simple algebra, identity of algebra, basis of identities, infinitely based algebra.

UDC: 512.554.1

Received: 20.11.2014

DOI: 10.17377/alglog.2015.54.302


 English version:
Algebra and Logic, 2015, 54:3, 204–210

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