%0 Journal Article %A Ramanathan, A. %T Equations defining Schubert varieties and Frobenius splittings of diagonals %J Publications Mathématiques de l'IHÉS %D 1987 %P 61-90 %V 65 %I Institut des Hautes Études Scientifiques %U http://www.numdam.org/item/PMIHES_1987__65__61_0/ %G en %F PMIHES_1987__65__61_0