activity
20072026
most citedIsotropy in Group Cohomology

5 citations · 5 across the 9 of their papers we have counts for

collaborators

15 papers

math.RA2026

Actions of central Morita monoidal groupoids, and seven term exact sequences of all types

Ammu Elizabeth Antony, Yuval Ginosar

We introduce a strict monoidal groupoid associated with a given commutative ring . It acts on the Clifford extension systems of -central algebras which are graded by a group…

math.RT2023

An inductive method for separable deformations

Yuval Ginosar, Ariel Amsalem

The Donald-Flanigan conjecture asserts that any group algebra of a finite group has a separable deformation. We apply an inductive method to deform group algebras from deformations…

math.RA2022

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…

math.RA2021

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…

math.RA2020

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…

math.GR2019

Separable deformations of the generalized quaternion group algebras

Yuval Ginosar

The group algebras of the generalized quaternion groups over fields which contain , are deformed to separable -algebras $[kQ_…