Cocharacters of group graded algebras and multiplicities bounded by one

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Let G be a finite group and A a G-graded algebra over a field F of characteristic zero. We characterize the (Formula presented.)-ideals (Formula presented.) of graded identities of A such that the multiplicities (Formula presented.) in the graded cocharacter of A are bounded by one. We do so by exhibiting a set of identities of the (Formula presented.)-ideal. As a consequence we characterize the varieties of G-graded algebras whose lattice of subvarieties is distributive.
Original languageEnglish
Pages (from-to)1709-1715
Number of pages7
Publication statusPublished - 2018

All Science Journal Classification (ASJC) codes

  • Algebra and Number Theory

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