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math.AG2008★ 1 cited
A Simpson correspondence in positive characteristic
Michel Gros, Bernard Le Stum, Adolfo Quirós
We define the -curvature map on the sheaf of differential operators of level on a scheme of positive characteristic as dual to some divided power map on infinitesimal…
math.AG2008
Un scindage de l'application de Frobenius sur toute l'algèbre des distributions de SL_2
Michel Gros
We study a splitting of the Frobenius map on the whole algebra of distributions of SL_2 (over a finite field) and its relation with the explicit Frobenius descent on arithmetic D-m…