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Related papers: Categorification of quasi-split iquantum groups

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We categorify a coideal subalgebra of the quantum group of $\mathfrak{sl}_{2r+1}$ by introducing a $2$-category \`a la Khovanov-Lauda-Rouquier, and show that self-dual indecomposable $1$-morphisms categorify the canonical basis of this…

Representation Theory · Mathematics 2022-11-18 Huanchen Bao , Peng Shan , Weiqiang Wang , Ben Webster

This is a brief introduction to the quiver Hecke algebras of Khovanov, Lauda and Rouquier, emphasizing their application to the categorification of quantum groups. The text is based on lectures given by the author at the ICRA workshop in…

Representation Theory · Mathematics 2016-03-21 Jonathan Brundan

Given a strong 2-representation of a Kac-Moody Lie algebra (in the sense of Rouquier) we show how to extend it to a 2-representation of categorified quantum groups (in the sense of Khovanov-Lauda). This involves checking certain extra…

Quantum Algebra · Mathematics 2015-02-24 Sabin Cautis , Aaron D. Lauda

We introduce a functor from the cube to the Burnside 2-category and prove that it is equivalent to the Khovanov spectrum given by Lipshitz and Sarkar in the almost-extreme quantum grading. We provide a decomposition of this functor into…

Geometric Topology · Mathematics 2020-12-29 Federico Cantero Morán , Marithania Silvero

In this paper we redevelop the foundations of the category theory of quasi-categories (also called infinity-categories) using 2-category theory. We show that Joyal's strict 2-category of quasi-categories admits certain weak 2-limits, among…

Category Theory · Mathematics 2015-06-18 Emily Riehl , Dominic Verity

We show that the Kac-Moody 2-categories defined by Rouquier and by Khovanov and Lauda are the same.

Representation Theory · Mathematics 2016-03-21 Jonathan Brundan

We categorify the quantum Borcherds-Bozec algebras by constructing their associated Khovanov-Lauda-Rouquier algebras.

Representation Theory · Mathematics 2024-12-16 Seok-Jin Kang , Young Rock Kim , Bolun Tong

We study a presentation of Khovanov - Lauda - Rouquier's candidate $2$-categorification of a quantum group using algebraic rewriting methods. We use a computational approach based on rewriting modulo the isotopy axioms of its pivotal…

Representation Theory · Mathematics 2019-07-24 Benjamin Dupont

In this note we give explicit isomorphisms of 2-categories between various versions of the categorified quantum group associated to a simply-laced Kac-Moody algebra. These isomorphisms are convenient when working with the categorified…

Quantum Algebra · Mathematics 2020-12-03 Aaron D. Lauda

In this paper, we study 2-representations of 2-quantum groups (in the sense of Rouquier and Khovanov-Lauda) categorifying tensor products of irreducible representations. Our aim is to construct knot homologies categorifying…

Geometric Topology · Mathematics 2013-05-06 Ben Webster

We produce graded monoidal categorifications of the quantum boson algebras in any symmetrizable Kac-Moody type. Our categories are defined in terms of diagrammatic generators and relations and have a faithful 2-representation on…

Quantum Algebra · Mathematics 2025-09-16 Sam Qunell

Using the theory of measurable categories developped by Yetter in work in preparation, we provide a notion of representations of 2-groups more well-suited to physically and geometrically interesting examples than that proposed in…

Quantum Algebra · Mathematics 2007-05-23 L. Crane , D. N. Yetter

In the present article we discuss the classification of quantum groups whose quasi-classical limit is a given simple complex Lie algebra $\mathfrak{g}$. This problem reduces to the classification of all Lie bialgebra structures on…

Quantum Algebra · Mathematics 2014-10-29 Boris Kadets , Eugene Karolinsky , Alexander Stolin , Iulia Pop

In this work we introduce the notion of almost-symmetry for generalized numerical semigroups. In addition to the main properties occurring in this new class, we present several characterizations for its elements. In particular we show that…

Combinatorics · Mathematics 2020-12-29 Carmelo Cisto , Wanderson Tenório

This paper gives an introduction to the homotopy theory of quasi-categories. Weak equivalences between quasi-categories are characterized as maps which induce equivalences on a naturally defined system of groupoids. These groupoids…

Category Theory · Mathematics 2019-09-19 J. F. Jardine

Given a vector space with an action of a semi-simple Lie algebra, we can try to "categorify" this representation, which means finding a category where the generators of the Lie algebra act by functors. Such categorical representations arise…

Quantum Algebra · Mathematics 2013-07-02 Joel Kamnitzer

We construct 2-functors from a 2-category categorifying quantum sl(n) to 2-categories categorifying the irreducible representation of highest weight $ 2 \omega_k. $

Quantum Algebra · Mathematics 2009-10-21 David Hill , Joshua Sussan

We introduce generalizations of Kac-Moody 2-categories in which the quiver Hecke algebras of Khovanov, Lauda and Rouquier are replaced by the quiver Hecke superalgebras of Kang, Kashiwara and Tsuchioka.

Representation Theory · Mathematics 2018-12-17 Jonathan Brundan , Alexander P. Ellis

This is a contribution to the structure theory of finite pointed quasi-quantum groups. We classify all finite-dimensional connected graded pointed Majid algebras of rank two which are not twist equivalent to ordinary pointed Hopf algebras.

Quantum Algebra · Mathematics 2015-08-19 Hua-Lin Huang , Gongxiang Liu , Yuping Yang , Yu Ye

Brundan and Kleshchev introduced graded decomposition numbers for representations of cyclotomic Hecke algebras of type $A$, which include group algebras of symmetric groups. Graded decomposition numbers are certain Laurent polynomials,…

Representation Theory · Mathematics 2017-05-17 Anton Evseev
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