Search results for "Fractional polynomial"

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Correspondence between some metabelian varieties and left nilpotent varieties

2021

Abstract In the class of left nilpotent algebras of index two it was proved that there are no varieties of fractional polynomial growth ≈ n α with 1 α 2 and 2 α 3 instead it was established the existence of a variety of fractional polynomial growth with α = 7 2 . In this paper we investigate similar problems for varieties of commutative or anticommutative metabelian algebras. We construct a correspondence between left nilpotent algebras of index two and commutative metabelian algebras or anticommutative metabelian algebras and we prove that the codimensions sequences of the corresponding algebras coincide up to a constant. This allows us to transfer the above results concerning varieties of…

Class (set theory)Pure mathematicsAlgebra and Number TheoryAnticommutativityFractional polynomialVarietiesMathematics::Rings and Algebras010102 general mathematicsGrowth01 natural sciencesSettore MAT/02 - AlgebraMathematics::Group TheoryTransfer (group theory)NilpotentCodimension0103 physical sciences010307 mathematical physics0101 mathematicsVariety (universal algebra)Constant (mathematics)Commutative propertyMathematicsJournal of Pure and Applied Algebra
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Flexible modelling of serial correlation in GLMM

2008

Covariance structures longitudinal data fractional polynomialsSettore SECS-S/01 - Statistica
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