Twisted group ring isomorphism problem

Leo Margolis, Ofir Schnabel

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We propose and study a variation of the classical isomorphism problem for group rings in the context of projective representations. We formulate several weaker conditions following from our notion and give all logical connections between these condition by studying concrete examples. We introduce methods to study the problem and provide results for various classes of groups, including abelian groups, groups of central type, p-groups of order p^4 and groups of order p^2*q^2, where p and q denote different primes.
Original languageEnglish
Pages (from-to)1195-1219
Number of pages21
JournalQuarterly Journal of Mathematics
Issue number4
Publication statusPublished - 1 Dec 2018


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