activity
19982026
most citedFinite Quantum Groupoids and Their Applications

122 citations · 392 across the 35 of their papers we have counts for

collaborators

46 papers

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…

math.QA2025

Pivotal Brauer-Picard groupoids and graded extensions

Agustina Czenky, David Jaklitsch, Dmitri Nikshych +4

We develop pivotal and spherical versions of graded extension theory. We define the corresponding analogues of Brauer-Picard -categorical groups and realize them as fixed points…

math.QA2024

The Tannakian radical and the mantle of a braided fusion category

Jason Green, Dmitri Nikshych

We define the Tannakian radical of a braided fusion category as the intersection of its maximal Tannakian subcategories. The localization of correspondi…

math.CT2024★ 4 cited

The Classification of Fusion 2-Categories

Thibault D. Décoppet, Peter Huston, Theo Johnson-Freyd +5

We classify (multi)fusion 2-categories in terms of braided fusion categories and group cohomological data. This classification is homotopy coherent -- we provide an equivalence bet…

math.QA2022★ 1 cited

Computing the group of minimal non-degenerate extensions of a super-Tannakian category

Dmitri Nikshych

We prove an analog of the Künneth formula for the groups of minimal non-degenerate extensions arXiv:1602.05936 of symmetric fusion categories. We describe in detail the structure o…