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A level-one representation of the quantum affine superalgebra $\U_q(\hat{\frak{sl}}(M+1|N+1))$ and vertex operators associated with the fundamental representations are constructed in terms of free bosonic fields. Character formulas of…

q-alg · Mathematics 2009-10-30 K. Kimura , J. Shiraishi , J. Uchiyama

This is a follow-up to the paper in which we categorified the affine quantum Schur algebra S(n,r) for 2 < r < n, using a quotient of Khovanov and Lauda's categorification of the affine quantum sl_n. In this paper we categorify S(n,n) for n…

Quantum Algebra · Mathematics 2016-01-20 Marco Mackaay , Anne-Laure Thiel

In this paper we give a classification of the $H$-spherical unitary highest weight representations of a hermitian Lie group $G$.

Representation Theory · Mathematics 2007-05-23 Bernhard Kroetz , Karl-Hermann Neeb

Let g be a semisimple Lie algebra with h a Cartan subalgebra. The orbit method attempts to assign representations of g to orbits in g*. Orbital varieties are particular Lagrangian subvarieties of such orbits which should lead to highest…

Representation Theory · Mathematics 2007-05-23 Anthony Joseph , Anna Melnikov

We construct representations of the quantum algebras ~$U_{q{\bf q}}(gl(n))$ and ~$U_{q{\bf q}}(sl(n))$~ which are in duality with the multiparameter quantum groups ~$GL_{q{\bf q}}(n)$, ~$SL_{q{\bf q}}(n)$,~ respectively. These objects…

Mathematical Physics · Physics 2024-04-16 V. K. Dobrev

Type A N-fold supersymmetry of one-dimensional quantum mechanics can be constructed by using sl(2) generators represented on a finite dimensional functional space. Using this sl(2) formalism we show a general method of constructing Type A…

High Energy Physics - Theory · Physics 2010-11-19 Hideaki Aoyama , Noriko Nakayama , Masatoshi Sato , Toshiaki Tanaka

We prove that categorified quantum sl(2) is an inverse limit of Flag 2-categories defined using cohomology rings of iterated flag varieties. This inverse limit is an instance of a 2-limit in a bicategory giving rise to a universal property…

Quantum Algebra · Mathematics 2014-03-18 Anna Beliakova , Aaron D. Lauda

We define highest weight categorical actions of sl_2 on highest weight categories and show that basically all known examples of categorical sl_2-actions on highest weight categories (including rational and polynomial representations of…

Representation Theory · Mathematics 2012-02-14 Ivan Losev

We give a construction of sl_2-categorifications (in the sense of Chuang-Rouquier) for representations of U_q(gl_n), for generic q and for q a root of unity.

Representation Theory · Mathematics 2011-01-18 Rahbar Virk

Highest-weight type representation theories of the affine sl(2) and N=2 superconformal algebras are shown to be equivalent modulo the respective spectral flows.

High Energy Physics - Theory · Physics 2014-11-18 B L Feigin , A M Semikhatov , I Yu Tipunin

Quantum classification is defined as the task of predicting the associated class of an unknown quantum state drawn from an ensemble of pure states given a finite number of copies of this state. By recasting the state discrimination problem…

Quantum Physics · Physics 2016-08-14 Sébastien Gambs

We prove a highest weight theorem classifying irerducible finite--dimensional representations of quantum affine algebras and survey what is currently known about the structure of these representations.

High Energy Physics - Theory · Physics 2008-02-03 V. Chari , A. N. Pressley

We study the highest weight and continuous tensor product representations of q-deformed Lie algebras through the mappings of a manifold into a locally compact group. As an example the highest weight representation of the q-deformed algebra…

q-alg · Mathematics 2008-02-03 Sergio Albeverio , Shao-Ming Fei

We give the complete set of irreducible representations of U(SU(2))_q when q is a m-th root of unity. In particular we show that their dimensions are less or equal to m. Some of them are not highest weight representations.

Quantum Algebra · Mathematics 2007-05-23 Ph. Roche , D. Arnaudon

We categorify the Casimir element of the idempotented form of quantum sl(2).

Quantum Algebra · Mathematics 2012-06-19 Anna Beliakova , Mikhail Khovanov , Aaron D. Lauda

Let $U$ be a quantized enveloping algebra. We consider the adjoint action of an $\mathfrak{sl}_2$-subalgebra of $U$ on a subalgebra of $U^+$ that is maximal integrable for this action. We categorify this representation in the context of…

Quantum Algebra · Mathematics 2020-02-03 Laurent Vera

We start with the observation that the quantum group SL_q(2), described in terms of its algebra of functions has a quantum subgroup, which is just a usual Cartan group. Based on this observation we develop a general method of constructing…

High Energy Physics - Theory · Physics 2009-10-28 Joseph Bernstein , Tanya Khovanova

We categorify a coideal subalgebra of the quantum group of $\mathfrak{sl}_{2r+1}$ by introducing a $2$-category \`a la Khovanov-Lauda-Rouquier, and show that self-dual indecomposable $1$-morphisms categorify the canonical basis of this…

Representation Theory · Mathematics 2022-11-18 Huanchen Bao , Peng Shan , Weiqiang Wang , Ben Webster

We classify rank one 2-representations of SL2, GL2 and SO3 web categories. The classification is inspired by similar results about quantum groups, given by reducing the problem to the classification of bilinear and trilinear forms, and is…

Representation Theory · Mathematics 2026-04-07 Daniel Tubbenhauer

We introduce the representation category $\mathscr{C}({\bf G})$ for a connected reductive algebraic group ${\bf G}$ which is defined over a finite field $\mathbb{F}_q$ of $q$ elements. We show that this category has many good properties for…

Representation Theory · Mathematics 2022-09-21 Junbin Dong