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We prove some isomorphisms between exceptional W-algebras associated with exceptional simple Lie algebras.

Quantum Algebra · Mathematics 2024-08-19 Jethro van Ekeren , Shigenori Nakatsuka

All results concern characteristic 2. Two procedures that to every simple Lie algebra assign simple Lie superalgebras, most of the latter new, are offered. We prove that every simple finite-dimensional Lie superalgebra is obtained as the…

Representation Theory · Mathematics 2024-09-16 Sofiane Bouarroudj , Alexei Lebedev , Dimitry Leites , Irina Shchepochkina

We define and describe simple complex Lie superalgbras of vector fields on "supercircles" - simple stringy superalgebras. There are four series of such algebras and four exceptional stringy superalgebras. The 13 of the simple stringy Lie…

High Energy Physics - Theory · Physics 2008-02-03 Pavel Grozman , Dimitry Leites , Irina Shchepochkina

We present a classification of all spherical indecomposable representations of classical and exceptional Lie superalgebras. We also include information about stabilizers, symmetric algebras, and Borels for which sphericity is achieved. In…

Representation Theory · Mathematics 2020-04-13 Alexander Sherman

We say that an indecomposable Cartan matrix A with entries in the ground field of characteristic 0 is almost affine if the Lie sub(super)algebra determined by it is not finite dimensional or affine but the Lie (super)algebra determined by…

Rings and Algebras · Mathematics 2024-09-17 Danil Chapovalov , Maxim Chapovalov , Alexei Lebedev , Dimitry Leites

We derive explicit formulas for the inverses of the Cartan matrices of the simple Lie algebras and the basic classical Lie superalgebras, as well as for their infinite generalizations.

Representation Theory · Mathematics 2017-11-07 Yangjiang Wei , Yi Ming Zou

We realize the enveloping algebra of the positive part of a semisimple complex Lie algebra as a convolution algebra of constructible functions on module varieties of some Iwanaga-Gorenstein algebras of dimension 1.

Representation Theory · Mathematics 2016-10-25 Christof Geiss , Bernard Leclerc , Jan Schröer

We illustrate some simple ideas that can be used for obtaining a classification of small-dimensional solvable Lie algebras.Using these we obtain the classification of 3 and 4 dimensional solvable Lie algebras (over fields of any…

Rings and Algebras · Mathematics 2007-05-23 W. A. de Graaf

A classification of the semisimple subalgebras of the Lie algebra of traceless $3\times 3$ matrices with complex entries, denoted $A_2$, is well-known. We classify its nonsemisimple subalgebras, thus completing the classification of the…

Rings and Algebras · Mathematics 2024-08-20 Andrew Douglas , Joe Repka

In this expository paper, we first review the classification of the restricted simple Lie algebras in characteristic different from 2 and 3 and then we describe their infinitesimal deformations. We conclude by indicating some possible…

Rings and Algebras · Mathematics 2014-01-06 Filippo Viviani

A class of simple filtered Lie algebras of polynomial growth with increasing filtration is distinguished and presentations of these algebras are explicitely described for the simplest examples. Lie (super)algebras of this class appear in…

Representation Theory · Mathematics 2007-05-23 Pavel Grozman , Dimitry Leites

This paper describes finite dimensionall irreducible representations of both twisted and untwisted Cartan map Lie superalgebras.

Representation Theory · Mathematics 2015-08-05 Irfan Bagci

A new class of infinite dimensional simple Lie algebras over a field with characteristic 0 are constructed. These are examples of non-graded Lie algebras. The isomorphism classes of these Lie algebras are determined. The structure space of…

Quantum Algebra · Mathematics 2007-05-23 Yucai Su

Suppose $\mathfrak{g}=\mathfrak{g}_{\bar 0}+\mathfrak{g}_{\bar 1} is a Lie superalgebra of queer type or periplectic type over an algebraically closed field $\textbf{k}$ of characteristic $p>2$. In this article, we initiate preliminarily to…

Representation Theory · Mathematics 2023-07-04 Ye Ren , Bin Shu , Fanlei Yang , An Zhang

Within the framework of inverse Lie problem, we give some non-trivial examples of coupled Lie remarkable equations, \textit{i.e.}, classes of differential equations that are in correspondence with their Lie point symmetries. In particular,…

Mathematical Physics · Physics 2021-08-05 Matteo Gorgone , Francesco Oliveri

We study and classify kinematical algebras which appear in the framework of Lie superalgebras or Lie algebras of order three. All these algebras are related through generalised Inon\"u-Wigner contractions from either the orthosymplectic…

High Energy Physics - Theory · Physics 2008-11-26 R. Campoamor-Stursberg , M. Rausch de Traubenberg

In this paper, we give Maurer-Cartan characterizations as well as a cohomology theory for compatible Lie algebras. Explicitly, we first introduce the notion of a bidifferential graded Lie algebra and thus give Maurer-Cartan…

Mathematical Physics · Physics 2023-08-31 Jifeng Liu , Yunhe Sheng , Chengming Bai

The algebraic and geometric classifications of complex $3$-dimensional noncommutative Jordan superalgebras are given. In particular, we obtain the algebraic and geometric classification of $3$-dimensional Kokoris and standard superalgebras,…

Rings and Algebras · Mathematics 2026-02-17 Hani Abdelwahab , Ivan Kaygorodov , Abror Khudoyberdiyev

The aim is to determine the derivations of the three series of finite-dimensional Z-graded Lie superalgebras of Cartan-type over a field of characteristic p > 3, called the special odd Hamiltonian superalgebras. To that end we first…

Representation Theory · Mathematics 2010-07-08 Wei Bai , Wende Liu , Lan Ni

We overview the classifications of simple finite-dimensional modular Lie algebras. In characteristic 2, their list is wider than that in other characteristics; e.g., it contains desuperizations of modular analogs of complex simple vectorial…

Representation Theory · Mathematics 2024-09-17 Sofiane Bouarroudj , Pavel Grozman , Alexei Lebedev , Dimitry Leites , Irina Shchepochkina
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