On Naturally Graded Lie and Leibniz Superalgebras

In general, the study of gradations has always represented a cornerstone in the study of non-associative algebras. In particular, natural gradation can be considered to be the first and most relevant gradation of nilpotent Leibniz (resp. Lie) algebras. In fact, many families of relevant solvable Lei...

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Detalhes bibliográficos
Autores: Camacho Santana, Luisa María, Navarro, R. M., Sánchez, J. M.
Formato: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2020
País:España
Recursos:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/115056
Acesso em linha:https://hdl.handle.net/11441/115056
https://doi.org/10.1007/s40840-019-00876-9
Access Level:acceso abierto
Palavra-chave:Lie superalgebras
Cohomology
Deformation
Leibniz superalgebra
Naturally graded
Descrição
Resumo:In general, the study of gradations has always represented a cornerstone in the study of non-associative algebras. In particular, natural gradation can be considered to be the first and most relevant gradation of nilpotent Leibniz (resp. Lie) algebras. In fact, many families of relevant solvable Leibniz (resp. Lie) algebras have been obtained by extensions of naturally graded algebras, i.e., solvable algebras with a wellstructured nilradical. Thus, the aim of this work is introducing the concept of natural gradation for Lie and Leibniz superalgebras. Moreover, after having defined naturally graded Lie and Leibniz superalgebras, we characterize natural gradations on a very important class of each of them, that is, those with maximal supernilindex.