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Related papers: Cherednik algebras and Zhelobenko operators

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Let $\ell\in\mathbb{N}$ with $\ell>2$ and $I:=\mathbb{Z}/2\ell\mathbb{Z}$. In this paper we give a new realization of the crystal of affine $\widehat{\mathfrak{sl}}_{\ell}$ using the modular representation theory of the affine Hecke…

Representation Theory · Mathematics 2021-10-05 Huang Lin , Jun Hu

Following the work of Kashiwara-Rouquier and Gan-Ginzburg, we define a family of exact functors from category $\mathcal O$ for the rational Cherednik algebra in type $A$ to representations of certain "coloured braid groups" and calculate…

Representation Theory · Mathematics 2019-12-19 Kevin McGerty

Given a complex reflection group W we compute the support of the spherical irreducible module of the rational Cherednik algebra of W in terms of the simultaneous eigenfunction of the Dunkl operators and Schur elements for finite Hecke…

Representation Theory · Mathematics 2017-07-27 Stephen Griffeth , Daniel Juteau

We explore the modular representation theory of affine and cyclotomic Yokonuma-Hecke algebras. We provide an equivalence between the category of finite dimensional representations of the affine (resp. cyclotomic) Yokonuma-Hecke algebra and…

Representation Theory · Mathematics 2019-11-26 Weideng Cui , Jinkui Wan

In this paper, we define a number of closely related isomorphisms. On one side of these isomorphisms sit a number of of algebras generalizing the Hecke and affine Hecke algebras, which we call the "Hecke family"; on the other, we find…

Rings and Algebras · Mathematics 2022-11-18 Ben Webster

We construct and study an explicit simultaneous $\mathscr{Y}$ eigenbasis of Ion and Wu's standard representation of the $^+$stable-limit double affine Hecke algebra for the limit Cherednik operators $\mathscr{Y}_i$. This basis arises as a…

Representation Theory · Mathematics 2023-02-21 Milo Bechtloff Weising

We describe a completely algebraic axiom system for intertwining operators of vertex algebra modules, using algebraic flat connections, thus formulating the concept of a {\em tree algebra}. Using the Riemann-Hilbert correspondence, we…

Quantum Algebra · Mathematics 2011-02-11 Igor Kriz , Yang Xiu

In [H5] (q-alg/9512024) and [H7] (q-alg/9704008), the author introduced the notion of intertwining operator algebra, a nonmeromorphic generalization of the notion of vertex operator algebra involving monodromies. The problem of constructing…

q-alg · Mathematics 2007-05-23 Yi-Zhi Huang

We introduce a generalization of degenerate affine Hecke algebra, called wreath Hecke algebra, associated to an arbitrary finite group G. The simple modules of the wreath Hecke algebra and of its associated cyclotomic algebras are…

Representation Theory · Mathematics 2008-11-01 Jinkui Wan , Weiqiang Wang

The main result of this paper is a combinatorial description of a basis of standard level 1 module for the twisted affine Lie algebra $A_2^{(2)}.$ This description also gives two new combinatorial identities of G\"ollnitz (or…

Quantum Algebra · Mathematics 2007-05-23 Ivica Siladic

In this paper we define and study a critical-level generalization of the Suzuki functor, relating the affine general linear Lie algebra to the rational Cherednik algebra of type A. Our main result states that this functor induces a…

Representation Theory · Mathematics 2022-05-31 Tomasz Przezdziecki

We review the construction of generalized affine Hecke algebras attached to Bernstein series of both smooth irreducible and enhanced $L$-parameters of $p$-adic reductive groups and apply it to the study of the Howe correspondence.

Representation Theory · Mathematics 2024-09-10 Anne-Marie Aubert

A criterion of irreducibility for induction products of evaluation modules of type A affine Hecke algebras is given. It is derived from multiplicative properties of the canonical basis of a quantum deformation of the Bernstein-Zelevinsky…

Quantum Algebra · Mathematics 2007-05-23 Bernard Leclerc , Maxim Nazarov , Jean-Yves Thibon

In vertex algebra theory, fusion rules are described as the dimension of the vector space of intertwining operators between three irreducible modules. We describe fusion rules in the category of weight modules for the Weyl vertex algebra.…

Quantum Algebra · Mathematics 2022-01-14 Drazen Adamovic , Veronika Pedic Tomic

This paper provides a combinatorial dictionary between three sets of objects: Bernstein-Zelevinsky multisegments, Kleshchev multipartitions, and the irreducible modules of the affine Hecke algebra $H_n$ (for generic $q$). In particular, we…

Representation Theory · Mathematics 2007-05-23 M. Vazirani

This paper is an expanded and updated version of the preprint arXiv:math/0406499. It includes a more detailed description of the basics of the theory of Cherednik and Hecke algebras of varieties started in arXiv:math/0406499, as well as a…

Quantum Algebra · Mathematics 2017-03-21 Pavel Etingof

For the affine Hecke algebra of type A at roots of unity, we make explicit the correspondence between geometrically constructed simple modules and combinatorially constructed simple modules and prove the modular branching rule. The latter…

Representation Theory · Mathematics 2010-04-22 Susumu Ariki , Nicolas Jacon , Cédric Lecouvey

For the affine Hecke algebra of type A at roots of unity, we make explicit the correspondence between geometrically constructed simple modules and combinatorially constructed simple modules and prove the modular branching rule. The latter…

Representation Theory · Mathematics 2010-04-23 Susumu Ariki , Nicolas Jacon , Cédric Lecouvey

In this paper we study homological properties of modules over an affine Hecke algebra H. In particular we prove a comparison result for higher extensions of tempered modules when passing to the Schwartz algebra S, a certain topological…

Representation Theory · Mathematics 2009-05-20 Eric Opdam , Maarten Solleveld

We study connections between closure operators on an algebra $(A,\Om)$ and congruences on the extended power algebra defined on the same algebra. We use these connections to give an alternative description of the lattice of all subvarieties…

Rings and Algebras · Mathematics 2015-08-18 Agata Pilitowska , Anna Zamojska-Dzienio