Showing 2016 · math.RAShow all
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math.RA2016
Twisted group ring isomorphism problem
Leo Margolis, Ofir Schnabel
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…
math.RA2016
Groups of central type, maximal Connected Gradings and Intrinsic Fundamental Groups of Complex Semisimple Algebras
Yuval Ginosar, Ofir Schnabel
Maximal connected grading classes of a finite-dimensional algebra are in one-to-one correspondence with Galois covering classes of which admit no proper Galois covering and…