Simple Vectorial Lie Algebras in Characteristic 2 and their Superizations

Fuente: arXiv
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Autori principali: Bouarroudj, Sofiane, Grozman, Pavel, Lebedev, Alexei, Leites, Dimitry, Shchepochkina, Irina
Natura: Preprint
Pubblicazione: 2015
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author Bouarroudj, Sofiane
Grozman, Pavel
Lebedev, Alexei
Leites, Dimitry
Shchepochkina, Irina
author_facet Bouarroudj, Sofiane
Grozman, Pavel
Lebedev, Alexei
Leites, Dimitry
Shchepochkina, Irina
contents 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 Lie superalgebras. We consider odd parameters of deformations. For all 15 Weisfeiler gradings of the 5 exceptional families, and one Weisfeiler grading for each of 2 serial simple complex Lie superalgebras (with 2 exceptional subseries), we describe their characteristic-2 analogs - new simple Lie algebras. Descriptions of several of these analogs, and of their desuperizations, are far from obvious. One of the exceptional simple vectorial Lie algebras is a previously unknown deform (the result of a deformation) of the characteristic-2 version of the Lie algebra of divergence-free vector fields; this is a new simple Lie algebra with no analogs in characteristics distinct from 2. In characteristic 2, every simple Lie superalgebra can be obtained from a simple Lie algebra by one of the two methods described in arXiv:1407.1695. Most of the simple Lie superalgebras thus obtained from simple Lie algebras we describe here are new.
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id arxiv_https___arxiv_org_abs_1510_07255
institution arXiv
publishDate 2015
record_format arxiv
spellingShingle Simple Vectorial Lie Algebras in Characteristic 2 and their Superizations
Bouarroudj, Sofiane
Grozman, Pavel
Lebedev, Alexei
Leites, Dimitry
Shchepochkina, Irina
Representation Theory
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 Lie superalgebras. We consider odd parameters of deformations. For all 15 Weisfeiler gradings of the 5 exceptional families, and one Weisfeiler grading for each of 2 serial simple complex Lie superalgebras (with 2 exceptional subseries), we describe their characteristic-2 analogs - new simple Lie algebras. Descriptions of several of these analogs, and of their desuperizations, are far from obvious. One of the exceptional simple vectorial Lie algebras is a previously unknown deform (the result of a deformation) of the characteristic-2 version of the Lie algebra of divergence-free vector fields; this is a new simple Lie algebra with no analogs in characteristics distinct from 2. In characteristic 2, every simple Lie superalgebra can be obtained from a simple Lie algebra by one of the two methods described in arXiv:1407.1695. Most of the simple Lie superalgebras thus obtained from simple Lie algebras we describe here are new.
title Simple Vectorial Lie Algebras in Characteristic 2 and their Superizations
topic Representation Theory
url https://arxiv.org/abs/1510.07255