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Finite-dimensional simple graded algebras

2008
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Sbornik. Mathematics
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Let R be a finite-dimensional algebra over an algebraically closed field F graded by an arbitrary group G. In the paper it is proved that if the characteristic of F is zero or does not divide the order of any finite subgroup of G, then R is graded simple if and only if it is isomorphic to a matrix algebra over a finite-dimensional graded skew field. Bibliography: 24 titles.

doi:10.1070/sm2008v199n07abeh003949
fatcat:i5ip7sfqwfba5hj5tfvckmeqim