A SPLITTING OF THE FROBENIUS MORPHISM ON THE ALGEBRA OF THE DISTRIBUTIONS OF A REDUCTIVE GROUP
Un scindage du morphisme de Frobenius sur l'algèbre des distributions d'un groupe réductif
Résumé
For a simply connected semisimple algebraic group over an algebraically closed field of positive characteristic we have already constructed a splitting of the Frobenius endomorphism on its algebra of distributions. We generalize the construction to the case of general reductive groups as well as the corresponding corollaries.