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Related papers: A categorification of a cyclotomic Hecke algebra

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As a natural generalization quantum Schur algebras associated with the Hecke algebra of the symmetric group, we introduce the quantum Schur superalgebra of type Q associated with the Hecke-Clifford superalgebra, which, by definition, is the…

Representation Theory · Mathematics 2018-02-26 Jie Du , Jinkui Wan

We define analytic $R$-groups for affine Hecke algebras, and prove the analog of the Knapp-Stein Dimension Theorem. As a corollary we prove that the commutant algebra of a unitary principal series representation is isomorphic to the complex…

Representation Theory · Mathematics 2010-09-01 Eric Opdam , Patrick Delorme

We introduce a new family of superalgebras which should be considered as a super version of the Khovanov-Lauda-Rouquier algebras. Let $I$ be the set of vertices of a Dynkin diagram with parity. To this data, we associate a family of graded…

Quantum Algebra · Mathematics 2013-03-19 Seok-Jin Kang , Masaki Kashiwara , Shunsuke Tsuchioka

Let $G$ be a direct product of inner forms of general linear groups over non-archimedean locally compact fields of residue characteristic $p$ and let $K^1$ be the pro-$p$-radical of a maximal compact open subgroup of $G$. In this paper we…

Representation Theory · Mathematics 2017-01-26 Gianmarco Chinello

We develop and collect techniques for determining Hochschild cohomology of skew group algebras S(V)#G and apply our results to graded Hecke algebras. We discuss the explicit computation of certain types of invariants under centralizer…

Rings and Algebras · Mathematics 2007-05-23 Anne V. Shepler , Sarah Witherspoon

We develop several applications of the fact that the Yokonuma--Hecke algebra of the general linear group GL is isomorphic to a direct sum of matrix algebras associated to Iwahori--Hecke algebras of type A. This includes a description of the…

Representation Theory · Mathematics 2016-05-16 N. Jacon , L. Poulain d'Andecy

We construct certain maps from buildings associated to td-groups to a space closely related to the classifying numerable $G$-space for the family $\mathcal{C}$vcy of covirtually cyclic subgroups. These maps are used in forthcoming paper to…

Geometric Topology · Mathematics 2024-04-02 Arthur Bartels , Wolfgang Lueck

We settle a long-standing problem in the theory of Hecke algebras of complex reflection groups by constructing many (graded) integral cellular bases of these algebras. As applications, we explicitly construct the simple modules of Ariki's…

Representation Theory · Mathematics 2026-02-18 C. Bowman

We begin the study of unitary representations of Hecke algebras of complex reflections groups. We obtain a complete classification for the Hecke algebra of the symmetric group $\mathfrak{S}_n$ over the complex numbers. Interestingly, the…

Representation Theory · Mathematics 2009-10-06 Emanuel Stoica

These lectures given in Montreal in Summer 1997 are mainly based on, and form a condensed survey of, the book by N. Chriss and V. Ginzburg: `Representation Theory and Complex Geometry', Birkhauser 1997. Various algebras arising naturally in…

Algebraic Geometry · Mathematics 2007-05-23 Victor Ginzburg

We categorify the Hecke algebra with parameters 1 and v using a variation of the category of Soergel bimodules.

Representation Theory · Mathematics 2018-04-13 Huanchen Bao

This is the author's PhD-thesis, which was written in 2006. The version posted here is identical to the printed one. Instead of an abstract, the short list of contents: Preface 5 1 Introduction 9 2 K-theory and cyclic type homology theories…

Representation Theory · Mathematics 2009-10-12 Maarten Solleveld

A key tool for the study of an affine Hecke algebra $\mathcal{H}$ is provided by Springer theory of the Langlands dual group via the realization of $\mathcal{H}$ as equivariant $K$-theory of the Steinberg variety. We prove a similar…

Representation Theory · Mathematics 2024-10-08 Roman Bezrukavnikov , Ivan Karpov , Vasily Krylov

The graded Hecke algebra for a finite Weyl group is intimately related to the geometry of the Springer correspondence. A construction of Drinfeld produces an analogue of a graded Hecke algebra for any finite subgroup of GL(V). This paper…

Group Theory · Mathematics 2007-05-23 Arun Ram , Anne V. Shepler

Using the framework for multiplicative parametrized homotopy theory introduced in joint work with C. Schlichtkrull, we produce a multiplicative comparison between the homotopical and operator algebraic constructions of twisted K-theory,…

Algebraic Topology · Mathematics 2021-12-22 Fabian Hebestreit , Steffen Sagave

These are lecture notes prepared for London Mathematical Society Symposium "Quantum Groups" held in Durham 19-29 July 1999. We give a survey on cyclotomic Hecke algebras. These algebras have been studied by Dipper, James, Malle, Mathas and…

Quantum Algebra · Mathematics 2007-05-23 Susumu Ariki

The Lascoux-Leclerc-Thibon-Ariki theory asserts that the K-group of the representations of the affine Hecke algebras of type A is isomorphic to the algebra of functions on the maximal unipotent subgroup of the group associated with a Lie…

Quantum Algebra · Mathematics 2015-12-22 Masaki Kashiwara , Vanessa Miemietz

Let $A$ be the path algebra of a finite acyclic quiver $Q$ over a finite field. We realize the quantum cluster algebra with principal coefficients associated to $Q$ as a sub-quotient of a certain Hall algebra involving the category of…

Representation Theory · Mathematics 2019-11-25 Ming Ding , Fan Xu , Haicheng Zhang

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

We study Hecke algebras of groups acting on trees with respect to geometrically defined subgroups. In particular, we consider Hecke algebras of groups of automorphisms of locally finite trees with respect to vertex and edge stabilizers and…

Operator Algebras · Mathematics 2008-05-22 Udo Baumgartner , Marcelo Laca , Jacqui Ramagge , George Willis
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