Zur konstruktion von Lie-Algebren aus Jordan-Tripelsystemen |
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Authors: | Kurt Meyberg |
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Affiliation: | (1) Mathematisches Institut der Universität, Schellingstr. 2-8, 8 München |
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Abstract: | In this paper we study certain Lie algebras which are constructed from the (-1)-eigenspaees of an involution of a Jordan algebra. The construction is a generalisation of the Koecher-Tits-construction. We give necessary conditions in terms of the Jordan algebras for the Lie algebras being simple. If the (-1)-spaces are Peirce-1/2-components then we obtain a close relation between the Lie algebras under consideration and the structure algebras of Jordan algebras. We finally give a list of those types of simple Lie algebras which can be formed by this construction; among them are Lie algebras of type E6 and E7.Of fundamental importance for our considerations is a close connection between the constructed Lie algebras and the standard imbeddings of Lie triple systems. |
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