Equations defining Schubert varieties and Frobenius splittings of diagonals
Publications Mathématiques de l'IHÉS, Tome 65 (1987), pp. 61-90. 
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     author = {Ramanathan, A.},
     title = {Equations defining {Schubert} varieties and {Frobenius} splittings of diagonals},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {61--90},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {65},
     year = {1987},
     mrnumber = {908216},
     zbl = {0634.14035},
     language = {en},
     url = {http://archive.numdam.org/item/PMIHES_1987__65__61_0/}
}
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Ramanathan, A. Equations defining Schubert varieties and Frobenius splittings of diagonals. Publications Mathématiques de l'IHÉS, Tome 65 (1987), pp. 61-90. http://archive.numdam.org/item/PMIHES_1987__65__61_0/

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