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University proceedings. Volga region. Physical and mathematical sciences, 2019, Issue 1, Pages 49–55
DOI: https://doi.org/10.21685/2072-3040-2019-1-5
(Mi ivpnz128)
 

Mathematics

Lie algebra deformations of type $\bar{A_5}$ in characteristic $2$

M. I. Kuznetsova, N. G. Chebochkob

a Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod
b National Research University “Higher School of Economics”, Nizhny Novgorod
References:
Abstract: Background. The classification of simple Lie algebras over an algebraically closed field of characteristic $p=2$ is not complete by now. Deformations of Lie algebras make it possible to obtain examples of new simple Lie algebras. The goal of the paper is to describe the structure of the space of local deformations as a module over automorphism group $Aut L$. Methods. Methods of deformation theory and a technique based on the study of the orbits of the action of the automorphism group of Lie algebra on the space of its local deformations are applied. Results. We find a description of the space of the local deformations of lie algebra as a quotient of the module in the standard 6-dimensional-module. Conclusions. The global deformation deformations of Lie algebra give a new simple $34$-dimensional Lie algebra of characteristic $2$.
Keywords: modular lie algebras, cohomology group, deformations of Lie algebras.
Funding agency Grant number
Russian Foundation for Basic Research 18-01-00900
This work was financially supported by the Russian Foundation for Basic Research, grant No. 18-01-00900, and the Basic Research Program of the National Research University Higher School of Economics in 2018.
Document Type: Article
UDC: 512.554.31
Language: Russian
Citation: M. I. Kuznetsov, N. G. Chebochko, “Lie algebra deformations of type $\bar{A_5}$ in characteristic $2$”, University proceedings. Volga region. Physical and mathematical sciences, 2019, no. 1, 49–55
Citation in format AMSBIB
\Bibitem{KuzChe19}
\by M.~I.~Kuznetsov, N.~G.~Chebochko
\paper Lie algebra deformations of type $\bar{A_5}$ in characteristic $2$
\jour University proceedings. Volga region. Physical and mathematical sciences
\yr 2019
\issue 1
\pages 49--55
\mathnet{http://mi.mathnet.ru/ivpnz128}
\crossref{https://doi.org/10.21685/2072-3040-2019-1-5}
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