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Over an algebraically closed fields, an alternative to the method due to Kostrikin and Shafarevich was recently suggested. It produces all known simple finite dimensional Lie algebras in characteristic p>2. For p=2, we investigate one of…

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

Finite dimensional modular Lie superalgebras over algebraically closed fields with indecomposable Cartan matrices are classified under some technical, most probably inessential, hypotheses. If the Cartan matrix is invertible, the…

Representation Theory · Mathematics 2009-06-11 Sofiane Bouarroudj , Pavel Grozman , Dimitry Leites

Superderivations for the eight families of finite or infinite dimensional graded Lie superalgebras of Cartan-type over a field of characteristic $p>3$ are completely determined by a uniform approach: The infinite dimensional case is reduced…

Rings and Algebras · Mathematics 2018-08-13 Wei Bai , Wende Liu

Models of the exceptional simple modular Lie superalgebras in characteristic $p\geq 3$, that have appeared in the classification due to Bouarroudj, Grozman and Leites of the Lie superalgebras with indecomposable symmetrizable Cartan…

Rings and Algebras · Mathematics 2008-05-12 Alberto Elduque

The five simple exceptional complex Lie superalgbras of vector fields are described. One of them is new; the other four are explicitely described for the first time. All of the exceptional Lie superalgebras are obtained with the help of the…

High Energy Physics - Theory · Physics 2007-05-23 Irina Shchepochkina

Recently, Grozman and Leites returned to the original Cartan's description of Lie algebras to interpret the Melikyan algebras (for p<7) and several other little-known simple Lie algebras over algebraically closed fields for p=3 as…

Representation Theory · Mathematics 2007-10-29 Sofiane Bouarroudj , Dimitry Leites

We construct four new series of generalized simple Lie algebras of Cartan type, using the mixtures of grading operators and down-grading operators. Our results in this paper are further generalizations of those in Osborn's work ``New simple…

Quantum Algebra · Mathematics 2007-05-23 Xiaoping Xu

We give a comprehensive survey of the theory of finite dimensional Lie algebras over an algebraically closed field of characteristic p>0 and announce that for p>3 the classification of finite dimensional simple Lie algebras is complete. Any…

Rings and Algebras · Mathematics 2007-05-23 Alexander Premet , Helmut Strade

We give explicit formulas proving restrictedness of the following Lie (super)algebras: known exceptional simple vectorial Lie (super)algebras in characteristic 3, deformed Lie (super)algebras with indecomposable Cartan matrix, and (under…

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

Dynkin's classification of maximal subalgebras of simple finite dimensional complex Lie algebras is generalized to Lie subsuperalgebras of the general linear Lie superalgebras.

High Energy Physics - Theory · Physics 2007-05-23 Irina Shchepochkina

We completely describe presentations of Lie superalgebras with Cartan matrix if they are simple Z-graded of polynomial growth. Such matrices can be neither integer nor symmetrizable. There are non-Serre relations encountered. In certain…

High Energy Physics - Theory · Physics 2009-10-30 Pavel Grozman , Dimitry Leites

The maximal graded subalgebras for four families of Lie superalgebras of Cartan type over a field of prime characteristic are studied. All maximal reducible graded subalgebras are described completely and their isomorphism classes,…

Rings and Algebras · Mathematics 2018-07-25 Wei Bai , Wende Liu , Xuan Liu , Hayk Melikyan

Two new simple modular Lie superalgebras are obtained in characteristics 3 and 5, which share the property that their even parts are orthogonal Lie algebras and the odd parts their spin modules. The characteristic 5 case is shown to be…

Rings and Algebras · Mathematics 2007-05-23 Alberto Elduque

A way to construct (conjecturally all) simple finite dimensional modular Lie (super)algebras over algebraically closed fields of characteristic not 2 is offered. In characteristic 2, the method is supposed to give only simple Lie…

Representation Theory · Mathematics 2007-10-31 Dimitry Leites

The ground field in the text is of characteristic 2. The classification of modulo 2 gradings of simple Lie algebras is vital for the classification of simple finite-dimensional Lie superalgebras: with each grading, a simple Lie superalgebra…

Representation Theory · Mathematics 2018-12-11 Andrey Krutov , Alexei Lebedev

Over algebraically closed fields of positive characteristic, for simple Lie (super)algebras, and certain Lie (super)algebras close to simple ones, with symmetric root systems (such that for each root, there is minus it of the same…

Representation Theory · Mathematics 2024-09-17 Sofiane Bouarroudj , Pavel Grozman , 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

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

A contragredient Lie superalgebra is a superalgebra defined by a Cartan matrix. A contragredient Lie superalgebra has finite-growth if the dimensions of the graded components (in the natural grading) depend polynomially on the degree. In…

Representation Theory · Mathematics 2008-10-16 Crystal Hoyt , Vera Serganova

The finite-dimensional restricted simple Lie algebras of characteristic p > 5 are classical or of Cartan type. The classical algebras are analogues of the simple complex Lie algebras and have a well-advanced representation theory with…

Representation Theory · Mathematics 2015-09-23 Georgia Benkart , Jörg Feldvoss
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