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Journal of Lie Theory 18 (2008), No. 3, 725--731
Copyright Heldermann Verlag 2008



A Note on the Bruhat Decomposition of Semisimple Lie Groups

Lucas Seco
Instituto de Matemática, Universidade Estadual de Campinas, Cx. Postal 6065 / 13.081-970, Campinas - SP, Brasil
lseco@ime.unicamp.br



Let a split element of a connected semisimple Lie group act on one of its flag manifolds. We prove that each connected set of fixed points of this action is itself a flag manifold. With this we can obtain a generalized Bruhat decomposition of a semisimple Lie group by entirely dynamical arguments.

Keywords: Bruhat decomposition, flag manifold.

MSC: 22E46; 14M15

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