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math.QA2026
Grothendieck Rings of Module Categories: Localizations, Strata, and Radicals
Riley Chinburg, Dmitri Nikshych
For a non-degenerate braided fusion category , we study the Grothendieck -ring of -module categories. We define a convolution of étale algebras…
math.CT2026
Twisted Deligne products of semisimple tensor categories
Pavel Etingof, Dmitri Nikshych, Victor Ostrik
We discuss the classification of twisted Deligne products of two semisimple tensor categories , i.e., categorifications of the tensor product of their Grothe…