Almost-classical Lie algebras. I |
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Affiliation: | Association Euratom-FOM, FOM-Instituut voor Plasmafysica, Rijnhuizen, Nieuwegein, the Netherlands |
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Abstract: | Let g be the Lie algebra of a semi-simple algebraic group G over an algebraically closed field k of characteristic p>0. In the first part of this paper we study the structure of g, and focus on the deviations from the characteristic 0 case. In the second part we determine, for almost-simple G, the automorphism group of g. |
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