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We describe a universal factorization for a functor with values in finite-dimensional measured algebras. More precisely we contruct the quantum automorphism group of this functor. This general recontruction result allows us to recapture a…

Quantum Algebra · Mathematics 2007-05-23 Julien Bichon

We construct actions of the affine Yangian of type A on higher level Fock spaces by extending known actions of the Yangian of finite type A due to Uglov. This is a degenerate analog of a result by Takemura-Uglov, which constructed actions…

Representation Theory · Mathematics 2016-07-13 Ryosuke Kodera

Given a finite group $\Gamma$ and a virtual character $\wt$ on it, we construct a Fock space and associated vertex operators in terms of representation ring of wreath products $\Gamma\sim S_n$. We recover the character tables of wreath…

Quantum Algebra · Mathematics 2023-05-19 Igor Frenkel , Naihuan Jing , Weiqiang Wang

We present a representation for linguistic structure that we call a Fock-space representation, which allows us to embed problems in language processing into small quantum devices. We further develop a formalism for understanding both…

Quantum Physics · Physics 2019-02-15 Nathan Wiebe , Alex Bocharov , Paul Smolensky , Matthias Troyer , Krysta M Svore

We give explicit constructions of quantum symplectic affine algebras at level 1 using vertex operators.

Quantum Algebra · Mathematics 2007-05-23 Naihuan Jing , Yoshitaka Koyama , Kailash Misra

This paper introduces the notion of calibrated representations for affine Hecke algebras and classifies and constructs all finite dimensional irreducible calibrated representations. The main results are that (1) irreducible calibrated…

Representation Theory · Mathematics 2007-05-23 Arun Ram

We use graded Specht modules to calculate the graded decomposition numbers for the Iwahori-Hecke algebra of the symmetric group over a field of characteristic zero at a root of unity. The algorithm arrived at is the Lascoux-Leclerc-Thibon…

Representation Theory · Mathematics 2009-11-02 Alexander S. Kleshchev , David Nash

Associated to the classical Weyl groups, we introduce the notion of degenerate spin affine Hecke algebras and affine Hecke-Clifford algebras. For these algebras, we establish the PBW properties, formulate the intertwiners, and describe the…

Representation Theory · Mathematics 2008-08-06 Ta Khongsap , Weiqiang Wang

We introduce the spin Hecke algebra, which is a q-deformation of the spin symmetric group algebra, and its affine generalization. We establish an algebra isomorphism which relates our spin (affine) Hecke algebras to the (affine)…

Representation Theory · Mathematics 2011-11-09 Weiqiang Wang

We construct a new family of irreducible modules over any basic classical affine Kac-Moody Lie superalgebra which are induced from modules over the Heisenberg subalgebra. We also obtain irreducible deformations of these modules for the…

Representation Theory · Mathematics 2022-02-10 Luan Pereira Bezerra , Lucas Calixto , Vyacheslav Futorny , Iryna Kashuba

We introduce and study holomorphically finitely generated (HFG) Fr\'echet algebras, which are analytic counterparts of affine (i.e., finitely generated) $\mathbb C$-algebras. Using a theorem of O. Forster, we prove that the category of…

Functional Analysis · Mathematics 2012-09-12 A. Yu. Pirkovskii

A representation of the quantum affine algebra $U_{q}(\widehat{sl}_3)$ of an arbitrary level $k$ is constructed in the Fock module of eight boson fields. This realization reduces the Wakimoto representation in the $q \rightarrow 1$ limit.…

High Energy Physics - Theory · Physics 2009-10-22 H. Awata , S. Odake , J. Shiraishi

We construct the finite dimensional simple integral modules for the (degenerate) affine Hecke-Clifford algebra (AHCA). Our construction includes an analogue of Zelevinsky's segment representations, a complete combinatorial description of…

Representation Theory · Mathematics 2009-05-05 David Hill , Jonathan Kujawa , Josh Sussan

Kirillov and Reshetikhin conjectured what is now known as the fermionic formula for the decomposition of tensor products of certain finite dimensional modules over quantum affine algebras. This formula can also be extended to the case of…

Quantum Algebra · Mathematics 2014-04-11 Masato Okado , Anne Schilling , Mark Shimozono

We show that every biorthogonal wavelet determines a representation by operators on Hilbert space satisfying simple identities, which captures the established relationship between orthogonal wavelets and Cuntz-algebra representations in…

Classical Analysis and ODEs · Mathematics 2007-05-23 P. E. T. Jorgensen , D. W. Kribs

In this note, we aim to review algorithms for constructing crystal representations of quiver Yangians in detail. Quiver Yangians are believed to describe an action of the BPS algebra on BPS states in systems of D-branes wrapping toric…

High Energy Physics - Theory · Physics 2024-09-02 Dmitry Galakhov , Alexei Gavshin , Alexei Morozov , Nikita Tselousov

We construct explicitly the quantum symplectic affine algebra $U_q(\widehat{sp}_{2n})$ using bosonic fields. The Fock space decomposes into irreducible modules of level -1/2, quantizing the Feingold-Frenkel construction for q=1.

q-alg · Mathematics 2008-02-03 Naihuan Jing , Yoshitaka Koyama , Kailash C. Misra

For a generic set in the Teichmueller space, we construct a covariant functor with the range in a category of the AF-algebras; the functor maps isomorphic Riemann surfaces to the stably isomorphic AF-algebras. As a special case, one gets a…

Operator Algebras · Mathematics 2016-06-08 Igor Nikolaev

Let G be a reductive algebraic group over a local field K or a global field F. It is well know that there exists a non-trivial and interesting representation theory of the group G(K) as well as the theory of automorphic forms on the…

Representation Theory · Mathematics 2012-07-10 Alexander Braverman , David Kazhdan

A covariant functor from the category of generic complex algebraic curves to a category of the AF-algebras is constructed. The construction is based on a representation of the Teichmueller space of a curve by the measured foliations due to…

Algebraic Geometry · Mathematics 2009-06-19 Igor Nikolaev