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Related papers: Classification problems in 2-representation theory

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In this paper, we discuss the generalization of finitary $2$-representation theory of finitary $2$-categories to finitary birepresentation theory of finitary bicategories. In previous papers on the subject, the classification of simple…

Representation Theory · Mathematics 2021-09-27 Marco Mackaay , Volodymyr Mazorchuk , Vanessa Miemietz , Daniel Tubbenhauer , Xiaoting Zhang

We extend the 2-representation theory of finitary 2-categories to certain 2-categories with infinitely many objects, denoted locally finitary 2-categories, and extend the classical classification results of simple transitive…

Category Theory · Mathematics 2022-01-19 James Macpherson

In this paper we introduce and investigate the notions of diagrams and discrete extensions in the study of finitary $2$-representations of finitary $2$-categories.

Representation Theory · Mathematics 2019-02-20 Aaron Chan , Volodymyr Mazorchuk

Motivated by recent advances in the categorification of quantum groups at prime roots of unity, we develop a theory of 2-representations for 2-categories enriched with a p-differential which satisfy finiteness conditions analogous to those…

Representation Theory · Mathematics 2020-08-18 Robert Laugwitz , Vanessa Miemietz

We apply the theory of weighted bicategorical colimits to study the problem of existence and computation of such colimits of birepresentations of finitary bicategories. The main application of our results is the complete classification of…

Representation Theory · Mathematics 2024-08-28 Mateusz Stroiński

In this paper, the 2-category $\mathfrak{Rep}_{{\bf 2Mat}_{\mathbb{C}}}(\mathbb{G})$ of (weak) representations of an arbitrary (weak) 2-group $\mathbb{G}$ on (some version of) Kapranov and Voevodsky's 2-category of (complex) 2-vector spaces…

Category Theory · Mathematics 2013-08-13 Josep Elgueta

We introduce the class of isotypic $2$-representations for finitary $2$-categories and the notion of inflation of $2$-representations. Under some natural assumptions we show that isotypic $2$-representations are equivalent to inflations of…

Representation Theory · Mathematics 2016-12-30 Volodymyr Mazorchuk , Vanessa Miemietz

There could be thousands of Introductions/Surveys of representation theory, given that it is an enormous field. This is just one of them, quite personal and informal. It has an increasing level of difficulty; the first part is intended for…

Representation Theory · Mathematics 2022-10-06 Nicolas Libedinsky

This is a partial derivative of \cite{MR94g:17044}. We give a list of examples/problems that some will find amusing.

Representation Theory · Mathematics 2018-02-08 Ben Cox

We define locally wide finitary 2-categories by relaxing the definition of finitary 2-categories to allow infinitely many objects and isomorphism classes of 1-morphisms and infinite dimensional hom-spaces of 2-morphisms. After defining…

Category Theory · Mathematics 2021-06-24 James Macpherson

In this article, we define and study the class of simple transitive $2$-representations of finitary $2$-categories. We prove a weak version of the classical Jordan-H\"older Theorem where the weak composition subquotients are given by simple…

Representation Theory · Mathematics 2016-12-30 Volodymyr Mazorchuk , Vanessa Miemietz

We study the problem of classification of simple transitive 2-representations for the (non-finitary) 2-category of bimodules over the dual numbers. We show that simple transitive 2-representations with finitary apex are necessarily of rank…

Representation Theory · Mathematics 2020-05-19 Helena Jonsson

We develop Morita theory for finitary additive 2-representations of finitary 2-categories. As an application we describe Morita equivalence classes for 2-categories of projective functors associated to finite dimensional algebras and for…

Representation Theory · Mathematics 2017-05-10 Volodymyr Mazorchuk , Vanessa Miemietz

In this paper, we develop 2-dimensional algebraic theory which closely follows the classical theory of modules. The main results are giving definitions of 2-module and the representation of 2-ring. Moreover, for a 2-ring $\cR$, we prove…

Category Theory · Mathematics 2015-03-17 Fang Huang , Shao-Han Chen , Wei Chen , Zhu-Jun Zheng

The interrelations between the inverse problems of the representation theory and the categorical representation theory are discussed.

q-alg · Mathematics 2008-02-03 Denis V. Juriev

This article develops a theory of cell combinatorics and cell 2-representations for differential graded 2-categories. We introduce two types of partial preorders, called the strong and weak preorder. We then analyse and compare them. The…

Representation Theory · Mathematics 2025-01-22 Robert Laugwitz , Vanessa Miemietz

The problem of classifying all unitary R-matrices of arbitrary finite dimension that have precisely two distinct eigenvalues is described, working up to a natural equivalence relation given by the characters of their braid group…

Quantum Algebra · Mathematics 2026-03-23 Gandalf Lechner

We study 2-representations of finitary 2-categories with involution and adjunctions by functors on module categories over finite dimensional algebras. In particular, we define, construct and describe in detail (right) cell 2-representations…

Representation Theory · Mathematics 2019-02-20 Volodymyr Mazorchuk , Vanessa Miemietz

In this article, we study connections between representation theory and efficient solutions to the conjugacy problem on finitely generated groups. The main focus is on the conjugacy problem in conjugacy separable groups, where we measure…

Group Theory · Mathematics 2017-09-29 Sean Lawton , Larsen Louder , D. B. McReynolds

We define the character of a group representation in a 2-category C. For linear C, this notion yields a Hopkins-Kuhn-Ravenel type character theory defined on pairs of commuting elements of the group. We discuss some examples and prove a…

K-Theory and Homology · Mathematics 2011-10-11 Nora Ganter , Mikhail Kapranov
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