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Related papers: Annular webs and Levi subalgebras

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We use annular foam TQFTs introduced by the first two authors to define equivariant $SL(2)$ and $SL(3)$ web algebras in the annulus. To a diagram of a tangle in the thickened annulus we assign a complex of bimodules over these algebras…

Geometric Topology · Mathematics 2025-08-08 Rostislav Akhmechet , Mikhail Khovanov , Melissa Zhang

Nonlinear $sl(2)$ algebras subtending generalized angular momentum theories are studied in terms of undeformed generators and bases. We construct their unitary irreducible representations in such a general context. The linear $sl(2)$-case…

q-alg · Mathematics 2008-11-26 B. Abdesselam , J. Beckers , A. Chakrabarti , N. Debergh

A representation of the Quantum Toroidal Algebra of type sl(N) is constructed on every irreducible integrable highest weight module of the Quantum Affine Algebra of type gl(N). As an intermediate step in the construction, we obtain a…

Quantum Algebra · Mathematics 2007-05-23 K. Takemura , D. Uglov

Let $\mathcal{X} \subset \mathbb{P}_k^d$ be Drinfeld's halfspace over a finite field $k$ and let $\mathcal{E}$ be a homogeneous vector bundle on $\mathbb{P}_k^d$. The paper deals with two different descriptions of the space of global…

Algebraic Geometry · Mathematics 2021-12-02 Sascha Orlik

There is a surprising isomorphism between the quantised universal enveloping algebras of osp(1|2n) and so(2n+1). This same isomorphism emerged in recent work of Mikhaylov and Witten in the context of string theory as a T-duality composed…

Quantum Algebra · Mathematics 2017-04-25 Ying Xu , R. B. Zhang

Codimension one webs are configurations of finitely many codimension one foliations in general position. Much of the classical theory evolved around the concept of abelian relation: a functional relation among the first integrals of the…

Complex Variables · Mathematics 2010-04-02 Jorge Vitorio Pereira , Luc Pirio

Using quantum skew-Howe duality, we study the category $\operatorname{Rep}(\mathfrak{gl}(m|n))$ of tensor products of exterior powers of the standard representation of $U_q(\mathfrak{gl}(m|n))$, and prove that it is equivalent to a category…

Geometric Topology · Mathematics 2015-06-18 Jonathan Grant

We give presentations, in terms of the generators and relations, for the reflection equation algebras of type $GL_n$ and $SL_n$, i.e., the covariantized algebras of the dual Hopf algebras of the small quantum groups of $\mathfrak{gl}_n$ and…

Quantum Algebra · Mathematics 2025-06-13 Juliet Cooke , Robert Laugwitz

This paper presents a $q$-analogue of an extension of the tensor algebra given by the same author. This new algebra naturally contains the ordinary tensor algebra and the Iwahori-Hecke algebra type $A$ of infinite degree. Namely this…

Representation Theory · Mathematics 2015-09-30 Minoru Itoh

The subalgebra of diagonal elements of a quantum matrix group has been conjectured by Daniel Krob and Jean-Yves Thibon to be isomorphic to a cubic algebra, coined the quantum pseudo-plactic algebra. We present a functorial approach to the…

Quantum Algebra · Mathematics 2019-12-10 Todor Popov

We discuss the category $\cal I$ of level zero integrable representations of loop algebras and their generalizations. The category is not semisimple and so one is interested in its homological properties. We begin by looking at some…

Representation Theory · Mathematics 2010-09-08 Vyjayanthi Chari

We introduce a class of equivalences, which we call generalized semi-infinite Hecke equivalences, between certain categories of representations of graded associative algebras which appear in the setting of semi-infinite cohomology for…

Representation Theory · Mathematics 2021-04-09 Alexey Sevostyanov

We construct an explicit equivalence between the (bi)category of gl(2) webs and foams and the Bar-Natan (bi)category of Temperley-Lieb diagrams and cobordisms. With this equivalence we can fix functoriality of every link homology theory…

Algebraic Topology · Mathematics 2023-06-14 Anna Beliakova , Matthew Hogancamp , Krzysztof Karol Putyra , Stephan Martin Wehrli

We introduce the notion of a complex crown domain for a connected Lie group $G$, and we use analytic extensions of orbit maps of antiunitary representations to these domains to construct nets of real subspaces on $G$ that are isotone,…

Representation Theory · Mathematics 2025-06-23 Daniel Beltita , Karl-Hermann Neeb

In this paper, we develop the foundations of the representation theory of quiver Hecke--Clifford superalgebras. We further construct a Schur--Weyl duality between quantum affine analogues of the queer Lie superalgebra and the quiver…

Representation Theory · Mathematics 2026-05-26 Koreto Endo

This note is an attempt to extend "Geometric Langlands Conjecture" from algebraic curves to algebraic surfaces. We introduce certain Hecke-type operators on vector bundles on an algebraic surface. The crucial observation is that the algebra…

q-alg · Mathematics 2008-02-03 Victor Ginzburg , Mikhail Kapranov , Eric Vasserot

We define global and local Weyl modules for Lie superalgebras of the form $\mathfrak{g} \otimes A$, where $A$ is an associative commutative unital $\mathbb{C}$-algebra and $\mathfrak{g}$ is a basic Lie superalgebra or $\mathfrak{sl}(n,n)$,…

Representation Theory · Mathematics 2020-08-24 Lucas Calixto , Joel Lemay , Alistair Savage

A ladder algebraic structure for $L^2(\mathbb{R}^+)$ which closes the Lie algebra $h(1)\oplus h(1)$, where $h(1)$ is the Heisenberg-Weyl algebra, is presented in terms of a basis of associated Laguerre polynomials. Using the Schwinger…

Mathematical Physics · Physics 2017-02-08 E. Celeghini , M. A. del Olmo

We define and study the category of symmetric $\mathfrak{sl}_2$-webs. This category is a combinatorial description of the category of all finite dimensional quantum $\mathfrak{sl}_2$-modules. Explicitly, we show that (the additive closure…

Quantum Algebra · Mathematics 2018-09-11 David E. V. Rose , Daniel Tubbenhauer

Supplementary comments about generalized Lie algebroids are presented and a new point of view over the construction of the Lie algebroid generalized tangent bundle of a (dual) vector bundle is introduced. Using the general theory of…

Differential Geometry · Mathematics 2014-11-03 E. Peyghan , C. M. Arcuş , L. Nourmohammadifar