Geodesic
Variety with fractional codimension growth
Čebyševskij sbornik, Tome 19 (2018) no. 1, pp. 176-186

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According to A.I. Maltsev, a set of linear algebras in which a fixed set of identities is called a variety. Using the language of the theory of Lie algebras, we say that the algebra is metabelian if it satisfies the identity $(xy)(zt)\equiv 0 $. A variety is called Specht if it is such a variety and any of its subvariety has a finite basis of identities. Codimension growth is determined by sequence of dimensions multilinear parts of a relatively free algebra of a variety. This sequence is called a sequence codimensions, referring to the multilinear spaces of the ideal identities of the variety. This article presents the results related to the problem of fractional polynomial growth. The review gives new examples of such varieties, and also give a new example of a variety with an infinite basis of identities.
Keywords: identity, variety, codimension, metabelian, shpecht. 
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     author = {S. P. Mishchenko and O. V. Shulezhko},
     title = {Variety with fractional codimension growth},
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S. P. Mishchenko; O. V. Shulezhko. Variety with fractional codimension growth. Čebyševskij sbornik, Tome 19 (2018) no. 1, pp. 176-186. http://geodesic.mathdoc.fr/item/CHEB_2018_19_1_a12/