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Related papers: On the category O for rational Cherednik algebras

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We define a universal version of the Knizhnik-Zamolodchikov-Bernard (KZB) connection in genus 1. This is a flat connection over a principal bundle on the moduli space of elliptic curves with marked points. It restricts to a flat connection…

Quantum Algebra · Mathematics 2024-04-04 D. Calaque , B. Enriquez , P. Etingof

We study a scheme M closely related to the set of pairs of n by n-matrices with rank 1 commutator. We show that M is a reduced complete intersection with n+1 irreducible components, which we describe. There is a distinguished Lagrangian…

Representation Theory · Mathematics 2007-05-23 Wee Liang Gan , Victor Ginzburg

Suppose $G$ is a finite group. In this paper, we construct an equivalence between the $\infty$-category of algebras over an $N_{\infty}$-operad $\mathcal{O}$ associated to a $G$-indexing system $\mathcal{I}$ and the corresponding…

Algebraic Topology · Mathematics 2026-04-03 Gregoire Marc

Let $H_{\mathbf{k}}$ be a symplectic reflection algebra corresponding to a cyclic subgroup $\Gamma \subseteq SL_2 \C$ of order $n$ and $U_{\mathbf{k}} = eH_{\mathbf{k}} e$ the spherical subalgebra of $H_{\mathbf{k}}$. We show that for…

Representation Theory · Mathematics 2007-05-23 Ian M. Musson

We study various categories of Whittaker modules over the queer Lie superalgebras $\mathfrak q(n)$. We formulate standard Whittaker modules and reduce the problem of composition factors of these standard Whittaker modules to that of Verma…

Representation Theory · Mathematics 2026-01-01 Chih-Whi Chen , Shun-Jen Cheng

We address two problems regarding the structure and representation theory of finite W-algebras associated with the general linear Lie algebras. Finite W-algebras can be defined either via the Whittaker model of Kostant or, equivalently, by…

Rings and Algebras · Mathematics 2009-06-06 Vyacheslav Futorny , Alexander Molev , Serge Ovsienko

We discuss the proof of Kazhdan and Lusztig of the equivalence of the Drinfeld category D(g,h) of g-modules and the category of finite dimensional Uq(g)-modules, q=exp(\pi ih), for h\in C\Q*. Aiming at operator algebraists the result is…

Quantum Algebra · Mathematics 2007-11-28 Sergey Neshveyev , Lars Tuset

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

We study the rational Cherednik algebra attached to the complex reflection group $G(r,1,2)$. Each irreducible representation $S^\lambda$ of $G(r,1,2)$ corresponds to a standard module $\Delta(\lambda)$ for the rational Cherednik algebra. We…

Representation Theory · Mathematics 2018-10-03 Armin Gusenbauer

The representation theory of 0-Hecke-Clifford algebras as a degenerate case is not semisimple and also with rich combinatorial meaning. Bergeron et al. have proved that the Grothendieck ring of the category of finitely generated…

Representation Theory · Mathematics 2016-05-31 Yunnan Li

We introduce a $p$-adic analytic analogue of Backelin and Kremnizer's construction of the quantum flag variety of a semisimple algebraic group, when $q$ is not a root of unity and $| q-1|<1$. We then define a category of $\lambda$-twisted…

Quantum Algebra · Mathematics 2020-01-10 Nicolas Dupré

We classify simple Whittaker modules for classical Lie superalgebras in terms of their parabolic decompositions. We establish a type of Mili\v{c}i\'c-Soergel equivalence of a category of Whittaker modules and a category of Harish-Chandra…

Representation Theory · Mathematics 2021-08-18 Chih-Whi Chen

We introduce a new category C, which we call the cluster category, obtained as a quotient of the bounded derived category D of the module category of a finite-dimensional hereditary algebra H over a field. We show that, in the simply-laced…

Representation Theory · Mathematics 2020-12-21 Aslak Bakke Buan , Bethany Marsh , Markus Reineke , Idun Reiten , Gordana Todorov

Let $G$ be a finite group of Lie type. In studying the cross-characteristic representation theory of $G$, the (specialized) Hecke algebra $H=\End_G(\ind_B^G1_B)$ has played a important role. In particular, when $G=GL_n(\mathbb F_q)$ is a…

Representation Theory · Mathematics 2023-01-19 Jie Du , Brian Parshall , Leonard Scott

We apply the general theory of tensor products of modules for a vertex operator algebra developed in our papers hep-th/9309076, hep-th/9309159, hep-th/9401119, q-alg/9505018, q-alg/9505019 and q-alg/9505020 to the case of the…

q-alg · Mathematics 2008-02-03 Yi-Zhi Huang , James Lepowsky

We develop a theory of parabolic induction and restriction functors relating modules over Coulomb branch algebras, in the sense of Braverman-Finkelberg-Nakajima. Our functors generalize Bezrukavnikov-Etingof's induction and restriction…

Representation Theory · Mathematics 2023-10-17 Joel Kamnitzer , Ben Webster , Alex Weekes , Oded Yacobi

We define a category of planar diagrams whose Grothendieck group contains an integral version of the infinite rank Heisenberg algebra, thus yielding a categorification of this algebra. Our category, which is a q-deformation of one defined…

Representation Theory · Mathematics 2014-10-24 Anthony Licata , Alistair Savage

In this note we prove a conjecture of Kashiwara, which states that the Euler class of a coherent analytic sheaf F on a complex manifold X is the product of the Chern character of F with the Todd class of X. As a corollary, we obtain a…

Algebraic Geometry · Mathematics 2017-10-10 Julien Grivaux

The goal of this paper is to relate the quantum category $\mathcal{O}$ (known also as the category of modules over the mixed quantum group) at an odd root of unity to the affine Hecke category. Namely, we prove equivalences of highest…

Representation Theory · Mathematics 2023-10-06 Ivan Losev

We prove a precise relation between simple modules in the Borel category O and the shifted category O for a symmetrizable Kac-Moody Lie algebra.

Representation Theory · Mathematics 2026-03-03 David Hernandez , Andrei Neguţ