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We investigate a general structure theory for a vertex operator algebra. We discuss the center and blocks, the Jacobson radical and solvable radical and local vertex operator algebras. The main consequence of our structure theory is that if…

Quantum Algebra · Mathematics 2007-05-23 Chongying Dong , Geoffrey Mason

We consider how a vertex operator algebra can be extended to an abelian intertwining algebra by a family of weak twisted modules which are {\em simple currents} associated with semisimple weight one primary vectors. In the case that the…

q-alg · Mathematics 2009-10-28 Chongying Dong , Haisheng Li , Geoffrey Mason

We give a formula for the modular operator and modular conjugation in terms of matrix coefficients of corepresentations of a quantum group in the sense of Kustermans and Vaes. As a consequence, the modular autmorphism group of a unimodular…

Operator Algebras · Mathematics 2011-07-26 Martijn Caspers , Erik Koelink

In this paper we continue the study of $Q$-operators in the six-vertex model and its higher spin generalizations. In [1] we derived a new expression for the higher spin $R$-matrix associated with the affine quantum algebra…

Mathematical Physics · Physics 2014-07-16 Vladimir V. Mangazeev

In the spirit of the geometric approach to two-dimensional conformal field theory, we explicitly associate to every holomorphic vertex operator algebra a section of a power of Hodge line bundle on the moduli space of curves of arbitrary…

Quantum Algebra · Mathematics 2026-05-27 Sebastiano Carpi , Giulio Codogni

Vertex operators are constructed providing representations of the exchange relations containing either the S-matrix of a real coupling (simply-laced) affine Toda field theory, or its minimal counterpart. One feature of the construction is…

High Energy Physics - Theory · Physics 2009-10-22 E. Corrigan , P. E. Dorey

Matrix elements of irreducible representations of the Lorentz group are calculated on the basis of complex angular momentum. It is shown that Laplace-Beltrami operators, defined in this basis, give rise to Fuchsian differential equations.…

Mathematical Physics · Physics 2009-11-11 V. V. Varlamov

In this investigation of character tables of finite groups we study basic sets and associated representation theoretic data for complementary sets of conjugacy classes. For the symmetric groups we find unexpected properties of characters on…

Representation Theory · Mathematics 2012-06-05 Christine Bessenrodt , Jørn B. Olsson

This is the third in a series of papers studying the vertex-algebraic structure of principal subspaces of twisted modules for lattice vertex operator algebras. We focus primarily on lattices $L$ whose Gram matrix contains only non-negative…

Quantum Algebra · Mathematics 2019-03-04 Michael Penn , Christopher Sadowski , Gautam Webb

We use the Jucys-Murphy elements of the BMW algebra to show that its center over the complex numbers for almost all parameters making it semisimple is given by Wheel Laurent polynomials, a subalgebra of the symmetric Laurent polynomials in…

Representation Theory · Mathematics 2026-02-04 Christoforos Milionis

The aim of this work is to report on several ladder operators for generalized Zernike polynomials which are orthogonal polynomials on the unit disk $\mathbf{D}\,=\,\{(x,y)\in \mathbb{R}^2: \; x^2+y^2\leqslant 1\}$ with respect to the weight…

Classical Analysis and ODEs · Mathematics 2024-05-07 Misael E. Marriaga

In this paper, for every one-dimensional formal group $F$ we formulate and study a notion of vertex $F$-algebra and a notion of $\phi$-coordinated module for a vertex $F$-algebra where $\phi$ is what we call an associate of $F$. In the case…

Quantum Algebra · Mathematics 2010-06-22 Haisheng Li

Under some hypotheses (symmetry, confluence), we enumerate all quadratically presented algebras, generated by creation and destruction operators, in which number operators exist. We show that these are algebras of bosons, fermions, their…

Mathematical Physics · Physics 2007-05-23 Fabien Besnard

The purposes of this work are to construct a class of homogeneous vertex representations of $C_l^{(1)} \ (l\geq2)$, and to derive a series of product-sum identities. These identities have fine interpretation in number theory.

Quantum Algebra · Mathematics 2014-10-07 Li-meng Xia , Naihong Hu

The correlation function of the product of N generalized vertex operators satisfies an infinite set of Ward identities, related to a W_{\infty} algebra, whose extention out of the mass shell gives rise to equations which can be considered…

High Energy Physics - Theory · Physics 2009-10-30 Vincenzo Marotta , Antonino Sciarrino

To each complex reflection group $\Gamma$ one can attach a canonical symplectic singularity $\mathcal{M}_\Gamma$ arXiv:math/9903070. Motivated by the 4D/2D duality arXiv:1312.5344, arXiv:1707.07679, Bonetti, Meneghelli and Rastelli…

Representation Theory · Mathematics 2023-12-07 Tomoyuki Arakawa , Toshiro Kuwabara , Sven Möller

In this exposition, I discuss several developments in the theory of vertex operator algebras, and I include motivation for the definition.

Quantum Algebra · Mathematics 2007-06-28 James Lepowsky

We introduce and study a family of integral operators in the Kantorovich sense for functions acting on locally compact topological groups. We obtain convergence results for the above operators with respect to the pointwise and uniform…

Functional Analysis · Mathematics 2014-08-26 Gianluca Vinti , Luca Zampogni

We propose new vertex operators, both the type I and the type II dual, of the elliptic quantum toroidal algebra U_{t_1,t_2,p}(gl_{1,tor}) by combining representations of U_{t_1,t_2,p}(gl_{1,tor}) and the notions of the elliptic stable…

Representation Theory · Mathematics 2025-08-06 Hitoshi Konno , Andrey Smirnov

The purpose of this work is to illustrate in a family of interesting examples how to study the representation theory of vertex operator superalgebras by combining the theory of vertex algebra extensions and modular forms. Let…

Quantum Algebra · Mathematics 2017-06-02 Thomas Creutzig , Jesse Frohlich , Shashank Kanade