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Related papers: Category O for p-adic rational Cherednik algebras

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We apply the Dunkl-Opdam operators and generalized Jack polynomials to study category O for the rational Cherednik algebra of type G(r,1,n). We determine the set of aspherical values, and answer a question of Iain Gordon on the ordering of…

Representation Theory · Mathematics 2010-11-01 Charles Dunkl , Stephen Griffeth

We classify blocks of category $\mathcal{O}$ for rational Cherednik algebras and of cyclotomic Hecke algebras of type G(r,p,n) by using the "residue equivalence" for multi-partitions.

Representation Theory · Mathematics 2010-02-09 Kentaro Wada

Let $X$ be a smooth rigid space with an action of a finite group $G$ satisfying that $X/G$ is represented by a rigid space. We construct sheaves of $p$-adic Cherednik algebras on the small \'etale site of the quotient $X/G$, and study some…

Number Theory · Mathematics 2026-02-10 Fernando Peña Vázquez

The authors define a Category $\mathcal{O}$ for any quasi-reductive Lie superalgebra $\mathfrak{g}$ with respect to a triangular decomposition. This much needed approach unifies many important constructions in the existing literature in a…

Representation Theory · Mathematics 2025-11-07 Chun-Ju Lai , Daniel K. Nakano , Arik Wilbert

In this paper we describe the characters of irreducible objects in category O for the rational Cherednik algebra associated to GL_2(F_p) over an algebraically closed field of positive characteristic p, for any value of the parameter t and…

Representation Theory · Mathematics 2021-02-26 Martina Balagovic , Harrison Chen

In this survey article we review Kac-Moody and Heisenberg algebra actions on the categories $\mathcal{O}$ of the rational Cherednik algebras associated to groups $G(\ell,1,n)$. Using these actions we solve basic representation theoretic…

Representation Theory · Mathematics 2015-09-30 Ivan Losev

We relate the representations of the rational Cherednik algebras associated with the complex reflection group G(m,1,n) to sheaves on Nakajima quiver varieties associated with extended Dynkin gaphs via a Z-algebra construction. As the…

Representation Theory · Mathematics 2007-05-23 Iain Gordon

We prove a conjecture of Rouquier relating the decomposition numbers in category $\mathcal{O}$ for a cyclotomic rational Cherednik algebra to Uglov's canonical basis of a higher level Fock space. Independent proofs of this conjecture have…

Representation Theory · Mathematics 2022-11-18 Ben Webster

We first consider the rational Cherednik algebra corresponding to the action of a finite group on a complex variety, as defined by Etingof. We define a category of representations of this algebra which is analogous to "category O" for the…

Representation Theory · Mathematics 2011-12-13 Stewart Wilcox

Ginzburg, Guay, Opdam and Rouquier established an equivalence of categories between a quotient category of the category $\mathcal{O}$ for the rational Cherednik algebra and the category of finite dimension modules of the Hecke algebra of a…

Representation Theory · Mathematics 2022-05-13 Henry Fallet

Let $K$ be a $p$-adic field. We continue to develop the theory of rigid analytic $p$-divisible groups over $K$. For example, we explain how to find back the category of Banach-Colmez spaces from rigid analytic $p$-divisible groups "in…

Algebraic Geometry · Mathematics 2019-01-25 Laurent Fargues

We study rational Cherednik algebras over an algebraically closed field of positive characteristic. We first prove several general results about category O, and then focus on rational Cherednik algebras associated to the general and special…

Representation Theory · Mathematics 2021-02-26 Martina Balagovic , Harrison Chen

We prove a number of results on the structure and representation theory of the rational Cherednik algebra of the imprimitive reflection group $G(\ell,p,n)$. In particular, we: (1) show a relationship to the Coulomb branch construction of…

Rings and Algebras · Mathematics 2020-10-16 Elise LePage , Ben Webster

We provide an algorithmic description of a family of graded decomposition numbers for rational Cherednik algebras.

Representation Theory · Mathematics 2017-05-09 C. Bowman , A. G. Cox , L. Speyer

Varagnolo and Vasserot conjectured an equivalence between the category O for a cyclotomic Rational Cherednik algebra and a truncation of an affine parabolic category O of type A. In this paper we reduce their conjecture to some purely…

Representation Theory · Mathematics 2013-05-23 Ivan Losev

This paper surveys the representation theory of rational Cherednik algebras. We also discuss the representations of the spherical subalgebras. We describe in particular the results on category O. For type A, we explain relations with the…

Representation Theory · Mathematics 2007-05-23 Raphael Rouquier

For any smooth algebraic curve C, Pavel Etingof introduced a `global' Cherednik algebra as a natural deformation of the cross product of the algebra of differential operators on C^n and the symmetric group. We provide a construction of the…

Representation Theory · Mathematics 2008-04-16 Michael Finkelberg , Victor Ginzburg

In this paper, we describe the irreducible representations in category O of the rational Cherednik algebra H_c(G_12,h) associated to the complex reflection group G_12 with reflection representation h for an arbitary complex parameter c. In…

Representation Theory · Mathematics 2012-02-28 Martina Balagovic , Christopher Policastro

This article aims to contribute to the study of algebras with triangular decomposition over a Hopf algebra, as well as the BGG Category O. We study functorial properties of O across various setups. The first setup is over a skew group ring,…

Representation Theory · Mathematics 2015-02-02 Apoorva Khare

We show that the category O for a rational Cherednik algebra of type A is equivalent to modules over a q-Schur algebra (parameter not a half integer), providing thus character formulas for simple modules. We give some generalization to…

Representation Theory · Mathematics 2007-12-03 Raphael Rouquier
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