6533b858fe1ef96bd12b6352

RESEARCH PRODUCT

On Codimension Growth of Finitely Generated Associative Algebras

Antonio GiambrunoMikhail Zaicev

subject

Discrete mathematicsMathematics(all)SequencePure mathematicsIntegerSimple (abstract algebra)General MathematicsCodimensionFinitely-generated abelian groupCharacterization (mathematics)Associative propertyMathematics

description

Abstract LetAbe a PI-algebra over a fieldF. We study the asymptotic behavior of the sequence of codimensionscn(A) ofA. We show that ifAis finitely generated overFthenInv(A)=limn→∞  c n (A) always exists and is an integer. We also obtain the following characterization of simple algebras:Ais finite dimensional central simple overFif and only ifInv(A)=dim=A.

https://doi.org/10.1006/aima.1998.1766