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Gradings of positive rank on simple Lie algebras

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 Added by Paul Levy
 Publication date 2013
  fields
and research's language is English




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We complete the classification of positive rank gradings on Lie algebras of simple algebraic groups over an algebraically closed field k whose characteristic is zero or not too small, and we determine the little Weyl groups in each case. We also classify the stable gradings and prove Popovs conjecture on the existence of a Kostant section.



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