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Displaying similar documents to “Hasse diagrams for parabolic geometries”

Parabolic geometries determined by filtrations of the tangent bundle

Sagerschnig, Katja

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Summary: Let 𝔤 be a real semisimple | k | -graded Lie algebra such that the Lie algebra cohomology group H 1 ( 𝔤 - , 𝔤 ) is contained in negative homogeneous degrees. We show that if we choose G = Aut ( 𝔤 ) and denote by P the parabolic subgroup determined by the grading, there is an equivalence between regular, normal parabolic geometries of type ( G , P ) and filtrations of the tangent bundle, such that each symbol algebra gr ( T x M ) is isomorphic to the graded Lie algebra 𝔤 - . Examples of parabolic geometries determined by filtrations...