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This paper develops a concept of 2-categorical algebraic quantum field theories (2AQFTs) that assign locally presentable linear categories to spacetimes. It is proven that ordinary AQFTs embed as a coreflective full 2-subcategory into the…

Mathematical Physics · Physics 2021-03-18 Marco Benini , Marco Perin , Alexander Schenkel , Lukas Woike

In \cite{rupel3},the authors defined algebra homomorphisms from the dual Ringel-Hall algebra of certain hereditary abelian category $\mathcal{A}$ to an appropriate $q$-polynomial algebra. In the case that $\mathcal{A}$ is the representation…

Representation Theory · Mathematics 2015-09-29 Xueqing Chen , Ming Ding , Fan Xu

Associated to quantum affine general linear Lie superalgebras are two families of short exact sequences of representations whose first and third terms are irreducible: the Baxter TQ relations involving infinite-dimensional representations;…

Mathematical Physics · Physics 2017-11-06 Huafeng Zhang

We encapsulate the basic notions of the theory of vertex algebras into the construction of a comonad on an appropriate category of formal distributions. Vertex algebras are recovered as coalgebras over this comonad.

Quantum Algebra · Mathematics 2023-05-30 Jethro van Ekeren

We introduce and study the quantum toroidal algebra $\mathcal{E}_{m|n}(q_1,q_2,q_3)$ associated with the superalgebra $\mathfrak{gl}_{m|n}$ with $m\neq n$, where the parameters satisfy $q_1q_2q_3=1$. We give an evaluation map. The…

Quantum Algebra · Mathematics 2021-03-25 Luan Bezerra , Evgeny Mukhin

We study a monoid associated to complex semisimple Lie algebras, called the quantic monoid. Its monoid ring is shown to be isomorphic to a degenerate quantized enveloping algebra. Moreover, we provide normal forms and a straightening…

Quantum Algebra · Mathematics 2007-05-23 Markus Reineke

We give closed formulae for the q-characters of the fundamental representations of the quantum loop algebra of a classical Lie algebra in terms of a family of partitions satisfying some simple properties. We also give the multiplicities of…

Representation Theory · Mathematics 2007-05-23 Vyjayanthi Chari , Adriano Moura

We study the representation dimension of the class of algebras known as quantum complete intersections. For such an algebra, we show that the representation dimension is at most twice its codimension. Moreover, we show that the…

Quantum Algebra · Mathematics 2007-10-16 Petter Andreas Bergh , Steffen Oppermann

Let g be a simple Lie algebra. We consider the category O-hat of those modules over the affine quantum group Uq(g-hat) whose Uq(g)-weights have finite multiplicity and lie in a finite union of cones generated by negative roots. We show that…

Quantum Algebra · Mathematics 2012-04-13 C. A. S. Young , E. Mukhin

We study finite quasi-quantum groups in their quiver setting developed recently by the first author in arXiv:0902.1620 and arXiv:0903.1472. We obtain a classification of finite-dimensional pointed Majid algebras of finite corepresentation…

Quantum Algebra · Mathematics 2015-05-13 Hua-Lin Huang , Gongxiang Liu , Yu Ye

In this paper, we introduce a quantum version of the wonderful compactification of a group as a certain noncommutative projective scheme. Our approach stems from the fact that the wonderful compactification encodes the asymptotics of matrix…

Representation Theory · Mathematics 2021-07-07 Iordan Ganev

We develop a quantum harmonic analysis framework for the affine group. This encapsulates several examples in the literature such as affine localization operators, covariant integral quantizations, and affine quadratic time-frequency…

Functional Analysis · Mathematics 2021-02-26 Eirik Berge , Stine M. Berge , Franz Luef , Eirik Skrettingland

The purpose of this paper is to present the notion of quotient of supergroups in different categories using the unified treatment of the functor of points and to examine some physically interesting examples.

Rings and Algebras · Mathematics 2008-05-22 L. Balduzzi , C. Carmeli , R. Fioresi

We define the notion of characteristic classes for supermanifolds endowed with a homological vector field $Q$. These take values in the cohomology of the Lie derivative operator $L_Q$ acting on arbitrary tensor fields. We formulate a…

Quantum Algebra · Mathematics 2007-05-23 S. L. Lyakhovich , E. A. Mosman , A. A. Sharapov

The quantum lens spaces form a natural and well-studied class of noncommutative spaces which can be subjected to classification using algebraic invariants by drawing on the fully developed classification theory of unital graph…

Operator Algebras · Mathematics 2025-01-30 Søren Eilers , Sophie Emma Zegers

We review canonical experiments on systems that have pushed the boundary between the quantum and classical worlds towards much larger scales, and discuss their unique features that enable quantum coherence to survive. Because the types of…

Quantum Physics · Physics 2015-06-19 Tristan Farrow , Vlatko Vedral

The study of topological quantum field theories increasingly relies upon concepts from higher-dimensional algebra such as n-categories and n-vector spaces. We review progress towards a definition of n-category suited for this purpose, and…

q-alg · Mathematics 2009-10-28 John C. Baez , James Dolan

A finite quantum hypergroup is a finite-dimensional unital algebra $A$ over the field of complex numbers. There is a coproduct on $A$, a coassociative map from $A$ to $A\otimes A$ assumed to be unital, but it is not required to be an…

Quantum Algebra · Mathematics 2022-09-28 Magnus B. Landstad , Alfons Van Daele

In this paper we define a quantum version of the ``fusion'' tensor product of two representations of an affine Kac-Moody algebra.It is replaced by what we call fusion action of the category of finite-dimensional representations of quantum…

q-alg · Mathematics 2008-02-03 D. Kazhdan , Y. Soibelman

We introduce a new diagrammatic $\Bbbk$-linear monoidal supercategory $QWeb^\bullet$, the affine web supercategory of type $Q$, where $\Bbbk$ is a commutative ring of characteristic not two. This category is the affinization of the web…

Representation Theory · Mathematics 2025-06-24 Linliang Song , Xingyu Wang