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A model of representations of a Lie algebra is a representation which a direct sum of all irreducible finite dimensional representations taken with multiplicity $1$. In the paper an explicit construction of a model of representation for all…

Representation Theory · Mathematics 2025-10-14 D. V. Artamonov

We introduce the notion of Lie algebras with plus-minus pairs as well as regular plus-minus pairs. These notions deal with certain factorizations in universal enveloping algebras. We show that many important Lie algebras have such pairs and…

Quantum Algebra · Mathematics 2019-08-17 S. Berman , J. Morita , Y. Yoshii

We consider the group algebra of the symmetric group as a superalgebra, and describe its Lie subsuperalgebra generated by the transpositions. The updated version corrects some of the arguments made in Sections 4.5 - 4.7. The statements of…

Representation Theory · Mathematics 2025-08-15 Christopher M. Drupieski , Jonathan R. Kujawa

Generalizing our earlier work, we introduce the homogeneous quantum $Z$-algebras for all quantum affine algebras $\alg$ of type one. With the new algebras we unite previously scattered realizations of quantum affine algebras in various…

Quantum Algebra · Mathematics 2020-09-08 Naihuan Jing

In this paper we describe the the category of Lie algebras of group algebras and the category of Plesken Lie algebras and explore the categorical relations between them. Further we provide the examples of the Lie algebra of the group…

Category Theory · Mathematics 2021-07-27 P G Romeo , Arjun S N

Given a simple finite-dimensional Lie algebra and an automorphism of finite order, one defines the notion of a twisted toroidal Lie algebra. In this paper, we construct representations of twisted toroidal Lie algebras from twisted modules…

Quantum Algebra · Mathematics 2021-03-05 Bojko Bakalov , Samantha Kirk

This is a short survey on the recent developments made in the integration theory with effective formulas of algebraic structures stronger or higher than Lie algebras.

Rings and Algebras · Mathematics 2025-10-14 Bruno Vallette

We develop structure theory of finite Lie conformal superalgebras.

Quantum Algebra · Mathematics 2007-05-23 Davide Fattori , Victor G. Kac , Alexander Retakh

The rings of symmetric polynomials form an inverse system whose limit, the ring of symmetric functions, is the model for the bosonic Fock space representation of the affine Lie algebra. We categorify this construction by considering an…

Representation Theory · Mathematics 2015-04-07 Jiuzu Hong , Oded Yacobi

A Fock space is introduced that admits an action of a quantum group of type A supplemented with some extra operators. The canonical and dual canonical basis of the Fock space are computed and then used to derive the finite-dimenisonal…

Quantum Algebra · Mathematics 2011-11-09 Shun-Jen Cheng , Weiqiang Wang , R. B. Zhang

In these notes, we describe an interesting connection between unitary representations of Lie groups and nets of local algebras, as they appear in Algebraic Quantum Field Theory (AQFT). It is based on first translating the axioms for nets of…

Operator Algebras · Mathematics 2025-11-13 Karl-Hermann Neeb

In this paper, enveloping Lie superalgebras of Bol superalgebras are introduced. The notion of Killing-Ricci forms and invariant forms of these superalgebras are investigated as generalization of the ones of Bol algebras.

Rings and Algebras · Mathematics 2017-07-31 Sylvain Attan

We construct Lie algebras of derivations (and identify their geometrical realization) whose Maurer-Cartan sets provide moduli spaces describing the classes of homotopy types of rational spaces sharing either the same homotopy Lie algebra,…

Algebraic Topology · Mathematics 2023-03-08 Yves Félix , Mario Fuentes , Aniceto Murillo

In this article, we introduce mock-Lie superalgebras, we give some definitions, properties, constructions, and we study their representations. Moreover we introduce pseudo-euclidean mock-Lie superalgebras which are mock-Lie superalgebras…

Rings and Algebras · Mathematics 2025-10-16 Tahar Benyoussef , Sami Mabrouk

The cohomology of Lie (super)algebras has many important applications in mathematics and physics. It carries most fundamental ("topological") information about algebra under consideration. At present, because of the need for very tedious…

Numerical Analysis · Mathematics 2025-10-20 Vladimir V. Kornyak

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 construct a duality functor on the category of continuous representations of linearly compact Lie superalgebras, using representation theory of Lie conformal superalgebras. We compute the dual representations of the generalized Verma…

Representation Theory · Mathematics 2021-04-16 Nicoletta Cantarini , Fabrizio Caselli , Victor Kac

In present work, we find a class of Lie algebras, which are defined from the symmetrizable generalized intersection matrices. However, such algebras are different from generalized intersection matrix algebras and intersection matrix…

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

These notes give an elementary introduction to Lie groups, Lie algebras, and their representations. Designed to be accessible to graduate students in mathematics or physics, they have a minimum of prerequisites. Topics include definitions…

Mathematical Physics · Physics 2007-05-23 Brian C. Hall

The goal of this paper is to give an explicit construction of the Fock spaces of the parafermion and the paraboson algebra, for an infinite set of generators. This is equivalent to constructing certain unitary irreducible lowest weight…

High Energy Physics - Theory · Physics 2009-08-24 N. I. Stoilova , J. Van der Jeugt
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