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We classify braided extensions $C$ of a rank $2$ fusion category. The result shows that $C$ is tensor equivalent to a Deligne's tensor product of some known categories, except $C$ is slightly degenerate and generated by a…

Quantum Algebra · Mathematics 2018-08-14 Jingcheng Dong , Hua Sun

We study a class of strictly weakly integral fusion categories $\mathfrak{I}_{N, \zeta}$, where $N \geq 1$ is a natural number and $\zeta$ is a $2^N$th root of unity, that we call $N$-Ising fusion categories. An $N$-Ising fusion category…

Quantum Algebra · Mathematics 2019-10-23 Jingcheng Dong , Sonia Natale , Hua Sun

We introduce a finiteness property for braided fusion categories, describe a conjecture that would characterize categories possessing this, and verify the conjecture in a number of important cases. In particular we say a category has F if…

Quantum Algebra · Mathematics 2011-09-12 Deepak Naidu , Eric C. Rowell

We classify modular fusion categories up to braided equivalence with less than four distinct twists of simple objects by observing that under this assumption, for each positive integer $N$, there are finitely many modular fusion categories…

Quantum Algebra · Mathematics 2025-09-03 Andrew Schopieray

We prove that braided fusion categories of Frobenius-Perron $p^mq^nd$ or $p^2q^2r^2$ are weakly group-theoretical, where $p,q,r$ are distinct prime numbers, $d$ is a square-free natural number such that $(pq,d)=1$. As an application, we…

Quantum Algebra · Mathematics 2023-06-07 Jingcheng Dong

We give a complete classification of pointed fusion categories over $\mathbb{C}$ of global dimension $p^3$ for $p$ any odd prime. We proceed to classify the equivalence classes of pointed fusion categories of dimension $p^3$ and we…

Algebraic Topology · Mathematics 2021-03-08 Kevin Maya , Adriana Mejía Castaño , Bernardo Uribe

We classify braided generalized near-group fusion categories whose global dimension is not an integer; there are exactly two up to Grothendieck equivalence and taking products with braided pointed fusion categories.

Quantum Algebra · Mathematics 2022-12-29 Andrew Schopieray

We give a classification of Z/2Z-graded fusion categories whose 0-component is a pointed fusion category. A number of concrete examples is considered.

Quantum Algebra · Mathematics 2012-10-08 Leonid Vainerman , Jean-Michel Vallin

We classify various types of graded extensions of a finite braided tensor category $\cal B$ in terms of its $2$-categorical Picard groups. In particular, we prove that braided extensions of $\cal B$ by a finite group $A$ correspond to…

Quantum Algebra · Mathematics 2021-05-28 Alexei Davydov , Dmitri Nikshych

We classify finite pointed braided tensor categories admitting a fiber functor in terms of bilinear forms on symmetric Yetter-Drinfeld modules over abelian groups. We describe the groupoid formed by braided equivalences of such categories…

Quantum Algebra · Mathematics 2017-01-04 Costel-Gabriel Bontea , Dmitri Nikshych

For a braided fusion category $\mathcal{V}$, a $\mathcal{V}$-fusion category is a fusion category $\mathcal{C}$ equipped with a braided monoidal functor $\mathcal{F}:\mathcal{V} \to Z(\mathcal{C})$. Given a fixed $\mathcal{V}$-fusion…

Quantum Algebra · Mathematics 2021-04-28 Corey Jones , Scott Morrison , David Penneys , Julia Plavnik

We establish rank-finiteness for the class of $G$-crossed braided fusion categories, generalizing the recent result for modular categories and including the important case of braided fusion categories. This necessitates a study of slightly…

Quantum Algebra · Mathematics 2019-02-19 Corey Jones , Scott Morrison , Dmitri Nikshych , Eric C. Rowell

This work is a detailed version of arXiv:0704.0195 [math.QA]. We introduce a new notion of the core of a braided fusion category. It allows to separate the part of a braided fusion category that does not come from finite groups. We also…

Quantum Algebra · Mathematics 2010-02-25 Vladimir Drinfeld , Shlomo Gelaki , Dmitri Nikshych , Victor Ostrik

Zesting of braided fusion categories is a procedure that can be used to obtain new modular categories from a modular category with non-trivial invertible objects. In this paper, we classify and construct all possible braided zesting data…

Quantum Algebra · Mathematics 2024-06-24 César Galindo , Giovanny Mora , Eric C. Rowell

In this paper we give a complete classification of pointed fusion categories over $\mathbb{C}$ of global dimension 8. We first classify the equivalence classes of pointed fusion categories of dimension 8, and then we proceed to determine…

Algebraic Topology · Mathematics 2021-03-08 Alvaro Muñoz , Bernardo Uribe

We study several classes of braided fusion categories, and prove that they all contain nontrivial Tannakian subcategories. As applications, we classify some fusion categories in terms of solvability and group-theoreticality.

Category Theory · Mathematics 2016-05-31 Jingcheng Dong , Li Dai

From a unifying lemma concerning fusion rings, we prove a collection of number-theoretic results about fusion, braided, and modular tensor categories. First, we prove that every fusion ring has a dimensional grading by an elementary abelian…

Quantum Algebra · Mathematics 2019-12-30 Terry Gannon , Andrew Schopieray

We give a rigorous development of the construction of new braided fusion categories from a given category known as zesting. This method has been used in the past to provide categorifications of new fusion rule algebras, modular data, and…

Quantum Algebra · Mathematics 2025-04-23 Colleen Delaney , César Galindo , Julia Plavnik , Eric C. Rowell , Qing Zhang

We classify integral modular categories of dimension pq^4 and p^2q^2 where p and q are distinct primes. We show that such categories are always group-theoretical except for categories of dimension 4q^2. In these cases there are well-known…

We introduce the notion of a $\textit{reflection fusion category}$, which is a type of a $G$-crossed category generated by objects of Frobenius-Perron dimension $1$ and $\sqrt{p}$, where $p$ is an odd prime. We show that such categories…

Quantum Algebra · Mathematics 2018-04-18 Pavel Etingof , César Galindo
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