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Pair algebras which have a non degenerate (left- and right-) invariant bilinear form and for which the inner derivation algebra is completely reducible are characterised by pairs (C,), where C is a n×n matrix satisfying certain conditions and is a sequence of n integers equal to 0 or 1. They occur as pair algebras of type (S(C,)–1,S(C,)1), xuy=[[x,u],y], where (S(C,)r)r is the gradation induced by . in the Kac-Moody algebraS(C). If C is an affin Cartan matrix (as in the case of Lie triple systems), there exists a finite dimensional simple Lie algebrag and a Aut (g), ord =m< such that the pair algebra is isomorphic to the pair algebra (g –1,g 1), xuy=[[x,u],y] (product ing), whereg i. is the eigenspace of of eigenvalue i, a primitive m-th root of unity.  相似文献   

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Ohne ZusammenfassungAuszug aus einer Dissertation an der TH Aachen.  相似文献   

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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.  相似文献   

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Ohne ZusammenfassungDies ist ein Teil einer Arbeit, die unter dem gleichen Titel von der Naturwissenschaftlichen Fakultät der Universität München im Herbst 1969 als Habilitationsschrift angenommen wurde.  相似文献   

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