32 citations · 189 across the 65 of their papers we have counts for
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math.RT2017★ 4 cited
Fields of definition for representations of associative algebras
Dave Benson, Zinovy Reichstein
We examine situations, where representations of a finite-dimensional -algebra defined over a separable extension field , have a unique minimal field of definition. Here…
math.RT2014
A numerical invariant for linear representations of finite groups
Nikita A. Karpenko, Zinovy Reichstein
We study the notion of essential dimension for a linear representation of a finite group. In characteristic zero we relate it to the canonical dimension of certain products of Weil…
math.RT2009
Maximal representation dimension of finite p-groups
Shane Cernele, Masoud Kamgarpour, Zinovy Reichstein
The representation dimension of a finite group G is the smallest positive integer m for which there exists an embedding of G in GL_m(C). In this paper we find the largest value of…