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We study finite dimensional algebras that appear as fibers of quantum orders over a given point of variety of center. We present the formula for the number of irreducible representations and check it for it for the algebra of twisted…

Quantum Algebra · Mathematics 2010-10-07 A. N. Panov

A description of the quantum superalgebra $U_q[sl(n+1|m)]$ and in particular of the special linear superalgebra $sl(n+1|m)$ via creation and annihilation generators (CAGs) is given. It provides an alternative to the canonical description of…

Quantum Algebra · Mathematics 2009-10-31 T. D. Palev , N. I. Stoilova

In this article we construct Weil representations of quasi-split unitary groups $U(n,n)(\mathbb{F}_{q^2}/\mathbb{F}_q)$ associated to quadratic extensions of finite fields. We define these representations by using an adequate presentation…

Representation Theory · Mathematics 2016-12-09 Luis Gutiérrez Frez , Andrea Vera-Gajardo

We construct a family of irreducible representations of the quantum plane and of the quantum Weyl algebra over an arbitrary field, assuming the deformation parameter is not a root of unity. We determine when two representations in this…

Representation Theory · Mathematics 2015-01-22 Samuel A. Lopes , João N. P. Lourenço

We show that the quantum Casimir operators of the quantum linear group constructed in early work of Bracken, Gould and Zhang together with one extra central element generate the entire center of $\Uq$. As a by product of the proof, we…

Quantum Algebra · Mathematics 2015-05-18 Junbo Li

A theorem of Glimm states that representation theory of an NGCR C*-algebra is always intractable, and the Cuntz algebra O_N is a case in point. The equivalence classes of irreducible representations under unitary equivalence cannot be…

Functional Analysis · Mathematics 2007-05-23 Palle E. T. Jorgensen

This paper is a short account of the construction of a new class of the infinite-dimensional representations of the quantum groups. The examples include finite-dimensional quantum groups $U_q(\mathfrak{g})$, Yangian $Y(\mathfrak{g})$ and…

Quantum Algebra · Mathematics 2016-09-07 A. Gerasimov , S. Kharchev , D. Lebedev , S. Oblezin

We study the structure and representations of a family of vertex algebras obtained from affine superalgebras by quantum reduction. As an application, we obtain in a unified way free field realizations and determinant formulas for all…

Mathematical Physics · Physics 2014-01-17 Victor Kac , Minoru Wakimoto

Gaussian elimination answers any question about a finitely presented vector space. However, a "uniform family" of such presentations--given as generic relations among an unspecified number of generators--is susceptible to elimination only…

Representation Theory · Mathematics 2014-06-04 John D. Wiltshire-Gordon

In this paper we classify all simple weight modules for a quantum group $U_q$ at a complex root of unity $q$ when the Lie algebra is not of type $G_2$. By a weight module we mean a finitely generated $U_q$-module which has finite…

Representation Theory · Mathematics 2015-07-24 Dennis Hasselstrøm Pedersen

We present a computational approach to studying the structure of the representation ring of the symmetric group in dimension six. The Kronecker coefficients and all power formulae of irreducible representations of $S_6$ are computed using…

Representation Theory · Mathematics 2025-06-10 Jia-Cheng Sun , Chi Zhang , Haoran Zhu

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 construct, using the quantum dilogarithm, a series of *-representations of quantized cluster varieties. This includes a construction of infinite dimensional unitary projective representations of their discrete symmetry groups - the…

Quantum Algebra · Mathematics 2009-11-13 V. V. Fock , A. B. Goncharov

While Wigner functions forming phase space representation of quantum states is a well-known fact, their construction for noncommutative quantum mechanics (NCQM) remains relatively lesser known, in particular with respect to gauge…

Mathematical Physics · Physics 2017-04-19 S. Hasibul Hassan Chowdhury , Hishamuddin Zainuddin

Irreducible representations of quantum groups $SL_q(2)$ (in Woronowicz' approach) were classified in J.Wang, B.Parshall, Memoirs AMS 439 in the~case of $q$ being an~odd root of unity. Here we find the~irreducible representations for all…

High Energy Physics - Theory · Physics 2008-02-03 P. Kondratowicz , P. Podles

Unitary representations of kinematical symmetry groups of quantum systems are fundamental in quantum theory. We propose in this paper its generalization to quantum kinematical groups. Using the method, proposed by us in a recent paper…

Quantum Algebra · Mathematics 2011-09-22 Oscar Arratia , Mariano A. del Olmo

In this paper we propose algebraic universal procedure for deriving "fusion rules" and Baxter equation for any integrable model with $U_q(\widehat{sl}_2)$ symmetry of Quantum Inverse Scattering Method. Universal Baxter Q- operator is got…

High Energy Physics - Theory · Physics 2009-10-30 Alexander Antonov , Boris Feigin

The nonstandard q-deformation $U'_q({\rm so}_n)$ of the universal enveloping algebra $U({\rm so}_n)$ has irreducible finite dimensional representations which are a q-deformation of the well-known irreducible finite dimensional…

Quantum Algebra · Mathematics 2009-10-31 N. Z. Iorgov , A. U. Klimyk

The present paper deals with the representation theory of the reflection equation algebra, connected with a Hecke type R-matrix. Up to some reasonable additional conditions the R-matrix is arbitrary (not necessary originated from quantum…

Quantum Algebra · Mathematics 2009-11-10 P. A. Saponov

Given a finite group $G$ and a subgroup $K$, we study the commutant of $\text{Ind}_K^G\theta$, where $\theta$ is an irreducible $K$-representation. After a careful analysis of Frobenius reciprocity, we are able to introduce an orthogonal…

Representation Theory · Mathematics 2024-06-25 Fabio Scarabotti , Filippo Tolli