5 citations · 5 across the 9 of their papers we have counts for
8 papers · 1 filter
Quotient gradings and the intrinsic fundamental group
Yuval Ginosar, Ofir Schnabel
Quotient grading classes are essential participants in the computation of the intrinsic fundamental group of an algebra . In order to study quotient gradings of a finit…
Mackey's obstruction map for discrete graded algebras
Yuval Ginosar
G.W. Mackey's celebrated obstruction theory for projective representations of locally compact groups was remarkably generalized by J. M. G. Fell and R. S. Doran to the wide area of…
Realization-obstruction exact sequences for Clifford system extensions
Yuval Ginosar
For every action of a group on a commutative ring we introduce two abelian monoids. The monoid consists of equivalen…
Crossed Products and Coding Theory
Yuval Ginosar, Aviram Rochas Moreno
Families of codes such as group codes, constacyclic and skew cyclic codes, some of which independently suggested in the literature, turn out to be special instances of the general…
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…
A graph-theoretic approach for comparing dimensions of components in simply-graded algebras
Yuval Ginosar, Ofir Schnabel
Any simple group-grading of a finite dimensional complex algebra induces a natural family of digraphs. We prove that for a…