On commutative tensor factors of group algebras

2024/08/16 by García-Lucas, Diego, del Río, Ángel, Sakurai, Taro
#FOS: Mathematics #Representation Theory (math.RT)

paper · doi:10.48550/arxiv.2408.09036

Abstract

We prove that any tensor product factorization with a commutative factor of a modular group algebra over a prime field comes from a direct product decomposition of the group basis. This extends previous work by Carlson and Kovács for the commutative case and answers a question of them in some cases.

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