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Related papers: Localizations for quiver Hecke algebras

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For a nondegenerate additive subgroup $G$ of the $n$-dimensional vector space $F^n$ over an algebraically closed field $F$ of characteristic zero, there is an associative algebra and a Lie algebra of Weyl type $W(G,n)$ spanned by all…

Quantum Algebra · Mathematics 2007-05-23 Yucai Su

We determine the blocks of the walled Brauer algebra in characteristic zero. These can be described in terms of orbits of the action of a Weyl group of type $A$ on a certain set of weights. In positive characteristic we give a linkage…

Representation Theory · Mathematics 2007-09-07 Anton Cox , Maud De Visscher , Stephen Doty , Paul Martin

Kornel Szlach\'anyi recently used the term skew-monoidal category for a particular laxified version of monoidal category. He showed that bialgebroids $H$ with base ring $R$ could be characterized in terms of skew-monoidal structures on the…

Category Theory · Mathematics 2012-09-06 Stephen Lack , Ross Street

Let $W$ be a Coxeter group. The goal of the paper is to construct new Hopf algebras that contain Hecke algebras $H_{\bf q}(W)$ as (left) coideal subalgebras. Our Hecke-Hopf algebras ${\bf H}(W)$ have a number of applications. In particular…

Quantum Algebra · Mathematics 2019-06-19 Arkady Berenstein , David Kazhdan

In this paper, we introduce the notion of combinatorial Auslander-Reiten(AR) quiver for commutation classes $[\widetilde{w}]$ of $w$ in finite Weyl group. This combinatorial object visualizes the convex partial order…

Representation Theory · Mathematics 2017-04-28 Se-Jin Oh , Uhi Rinn Suh

We describe quantizations on monoidal categories of modules over finite groups. They are given by quantizers which are elements of a group algebra. Over the complex numbers we find these explicitly. For modules over S3 and A4 we are given…

Quantum Algebra · Mathematics 2012-05-04 Hilja L. Huru , Valentin V. Lychagin

Let $Q$ be an acyclic quiver and $\Lambda$ be the complete preprojective algebra of $Q$ over an algebraically closed field $k$. To any element $w$ in the Coxeter group of $Q$, Buan, Iyama, Reiten and Scott have introduced and studied in…

Representation Theory · Mathematics 2014-02-26 Claire Amiot , Osamu Iyama , Idun Reiten , Gordana Todorov

Recently, Kashiwara-Kim-Oh-Park introduced a wide family of monoidal categories of finite-dimensional representations of quantum affine algebras, which provide monoidal categorifications of cluster algebras. In this paper, we prove that,…

Representation Theory · Mathematics 2026-01-13 Heizo Sakamoto

We study the Lie module structure given by the Gerstenhaber bracket on the Hochschild cohomology groups of a monomial algebra with radical square zero. The description of such Lie module structure will be given in terms of the combinatorics…

Representation Theory · Mathematics 2008-09-05 Selene Sanchez-Flores

Let $J$ be a set of pairs consisting of good modules over an affine quantum algebra and invertible elements. The distribution of poles of the normalized R-matrices yields Khovanov-Lauda-Rouquier algebras $R^J$. We define a functor $F$ from…

Representation Theory · Mathematics 2021-03-29 Seok-Jin Kang , Masaki Kashiwara , Myungho Kim

Continuing our project on noncommutative (stable) homotopy we construct symmetric monoidal $\infty$-categorical models for separable $C^*$-algebras $\mathtt{SC^*_\infty}$ and noncommutative spectra $\mathtt{NSp}$ using the framework of…

K-Theory and Homology · Mathematics 2017-01-27 Snigdhayan Mahanta

We give the first positive formulas for the weights of every simple highest weight module $L(\lambda)$ over an arbitrary Kac-Moody algebra. Under a mild condition on the highest weight, we also express the weights of $L(\lambda)$ as an…

Representation Theory · Mathematics 2022-04-14 Gurbir Dhillon , Apoorva Khare

We consider two families of categories. The first is the family of semisimple quotients of H. Andersen's tilting module categories for quantum groups of Lie type $B$ specialized at odd roots of unity. The second consists of categories…

Quantum Algebra · Mathematics 2007-05-23 Eric C. Rowell

Recently, we have constructed a non{linear (polynomial) extension of the 1-mode Heisenberg group and the corresponding Fock and Weyl representations. The transition from the 1-mode case to the current algebra level, in which the operators…

Operator Algebras · Mathematics 2014-09-15 Luigi Accardi , Ameur Dhahri

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

We classify simple weight modules over infinite dimensional Weyl algebras and realize them using the action on certain localizations of the polynomial ring. We describe indecomposable projective and injective weight modules and deduce from…

Representation Theory · Mathematics 2012-10-22 Vyacheslav Futorny , Dimitar Grantcharov , Volodymyr Mazorchuk

We associate a monoidal category $\mathcal{H}^\lambda$ to each dominant integral weight $\lambda$ of $\widehat{\mathfrak{sl}}_p$ or $\mathfrak{sl}_\infty$. These categories, defined in terms of planar diagrams, act naturally on categories…

Representation Theory · Mathematics 2019-02-04 Marco Mackaay , Alistair Savage

Henriques and Kamnitzer have defined a commutor for the category of crystals of a finite-dimensional complex reductive Lie algebra that gives it the structure of a coboundary category (somewhat analogous to a braided monoidal category).…

Quantum Algebra · Mathematics 2012-02-28 Alistair Savage

In this paper, we define and study weak monoidal Hom-Hopf algebras, which generalize both weak Hopf algebras and monoidal Hom-Hopf algebras. If $H$ is a weak monoidal Hom-Hopf algebra with bijective antipode and let $Aut_{wmHH}(H)$ be the…

Quantum Algebra · Mathematics 2015-02-27 Wei Wang , Shuanhong Wang , Xiaohui Zhang

In this paper, we study a family of generalized Weyl algebras $\{\A\}$ and their polynomial extensions. We will show that the algebra $\A$ has a simple localization $\A_{\mathbb{S}}$ when none of $p$ and $q$ is a root of unity. As an…

Rings and Algebras · Mathematics 2016-10-18 Xin Tang