Koszul duality and Frobenius structure for restricted enveloping algebrasReport as inadecuate




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* Corresponding author 1 LMBP - Laboratoire de Mathématiques Blaise Pascal

Abstract : Let g be the Lie algebra of a connected, simply connected semisimple algebraic group over an algebraically closed field of sufficiently large positive characteristic. We study the compatibility between the Koszul grading on the restricted enveloping algebra Ug 0 of g constructed in a previous paper, and the structure of Frobenius algebra of Ug 0. This answers a question raised to the author by W. Soergel.





Author: Simon Riche -

Source: https://hal.archives-ouvertes.fr/



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