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Vertex algebras and factorization algebras are two approaches to chiral conformal field theory. Costello and Gwilliam describe how every holomorphic factorization algebra on the plane of complex numbers satisfying certain assumptions gives…

Quantum Algebra · Mathematics 2021-05-18 Daniel Bruegmann

We study general perturbations of two-dimensional conformal field theories by holomorphic fields. It is shown that the genus one partition function is controlled by a contact term (pre-Lie) algebra given in terms of the operator product…

High Energy Physics - Theory · Physics 2009-10-30 R. Dijkgraaf

Conformal algebra is an axiomatic description of the operator product expansion (or rather its Fourier transform) of chiral fields in a conformal field theory. This is a review of recent developments in the subject.

q-alg · Mathematics 2008-02-03 Victor G. Kac

We study irreducible representations for the Lie algebra of vector fields on a 2-dimensional torus constructed using the generalized Verma modules. We show that for a certain choice of parameters these representations remain irreducible…

Representation Theory · Mathematics 2007-07-05 Yuly Billig , Alexander Molev , Ruibin Zhang

We study the properties of shifted vertex operator algebras, which are vertex algebras derived from a given theory by shifting the conformal vector. In this way, we are able to exhibit large numbers of vertex operator algebras which are…

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

We characterize vertex algebras (in a suitable sense) as algebras over a certain graded co-operad. We also discuss some examples and categorical implications of this characterization.

Rings and Algebras · Mathematics 2010-06-02 Ruthi Hortsch , Igor Kriz , Ales Pultr

This is a set of lecture notes on the operator algebraic approach to 2-dimensional conformal field theory. Representation theoretic aspects and connections to vertex operator algebras are emphasized. No knowledge on operator algebras or…

Mathematical Physics · Physics 2018-04-24 Yasuyuki Kawahigashi

In this paper, we present a canonical association of quantum vertex algebras and their $\phi$-coordinated modules to Lie algebra $\gl_{\infty}$ and its 1-dimensional central extension. To this end we construct and make use of another…

Quantum Algebra · Mathematics 2013-01-25 Cuipo Jiang , Haisheng Li

We review various aspects of two dimensional conformal field theories paying close attention to the algebraic structures that intervene. We provide a compact description regarding the appearance of a chiral algebra as the symmetry algebra…

High Energy Physics - Theory · Physics 2021-10-29 Joaquin Liniado

We introduce the notion of vertex coalgebra, a generalization of vertex operator coalgebras. Next we investigate forms of cocommutativity, coassociativity, skew-symmetry, and an endomorphism, $D^*$, which hold on vertex coalgebras. The…

Quantum Algebra · Mathematics 2008-01-22 Keith Hubbard

We discuss various old and new definitions of the notion of a vector field on a convenient manifold that can be proved to give rise to Lie algebras, and are in finite dimensions equivalent to the standard notion of a vector field.

Differential Geometry · Mathematics 2026-04-21 Arnold Neumaier , Phillip Josef Bachler

We introduce several definitions within the framework of vertex and conformal algebras which are analogous to some important concepts of the classical Lie theory. Most importantly, we define formal vertex laws, which correspond to the…

Mathematical Physics · Physics 2022-09-22 Carina Boyallian , Juan Guzmán

Unitary vertex operator algebras (VOAs) and conformal nets are the two most prominent mathematical axiomatizations of two-dimensional unitary chiral conformal field theories. They are conjectured to be equivalent, but a rigorous comparison…

Operator Algebras · Mathematics 2025-10-13 André G. Henriques , James E. Tener

We prove an equivalence between the following notions: (i) unitary M\"obius vertex algebras, and (ii) Wightman conformal field theories on the circle (with finite-dimensional conformal weight spaces) satisfying an additional condition that…

Mathematical Physics · Physics 2022-10-24 Christopher Raymond , Yoh Tanimoto , James E. Tener

Any variety of classical algebras has a so-called conformal counterpart. For example one can consider Lie conformal or associative conformal algebras. Lie conformal algebras are closely related to vertex algebras. We define free objects in…

Quantum Algebra · Mathematics 2007-05-23 Michael Roitman

Based on the loop-algebraic presentation of 2-toroidal Lie superalgebras, free field representation of toroidal Lie superalgebras of type $A(m, n)$ is constructed using both vertex operators and bosonic fields.

Quantum Algebra · Mathematics 2015-05-05 Naihuan Jing , Chongbin Xu

We define and study the structure of SUSY Lie conformal and vertex algebras. This leads to effective rules for computations with superfields.

Quantum Algebra · Mathematics 2008-11-26 Reimundo Heluani , Victor G. Kac

Vertex $F$-algebras are a deformation of the concept of an ordinary vertex algebra in which the additive formal group law is replaced by an arbitrary formal group law $F$. The main theorem of this paper constructs a Lie algebra from a…

Quantum Algebra · Mathematics 2026-01-19 Markus Upmeier

Realizations of four dimensional Lie algebras as vector fields in the plane are explicitly constructed. Fourth order ordinary differential equations which admit such Lie symmetry algebras are derived. The route to their integration is…

Exactly Solvable and Integrable Systems · Physics 2015-06-26 T. Cerquetelli , N. Ciccoli , M. C. Nucci

In this paper we introduce a notion of vertex Lie algebra U, in a way a "half" of vertex algebra structure sufficient to construct the corresponding local Lie algebra L(U) and a vertex algebra V(U). We show that we may consider U as a…

Quantum Algebra · Mathematics 2007-05-23 Mirko Primc