On separable Schur rings over abelian groups

Abstract

A finite group is said to be weakly separable if every algebraic isomorphism between two $S$-rings over this group is induced by a combinatorial isomorphism. In the paper we prove that every abelian weakly separable group belongs to one of several explicitly given families only.

arXiv commentarXiv admin note: text overlap with arXiv:1812.11313

References in corpus (1)

• Separability of Schur rings over an abelian group of order 4p