Another proof of the global F-regularity of Schubert varieties
Another proof of the global F-regularity of Schubert varieties
Recently, Lauritzen, Raben-Pedersen and Thomsen proved that Schubert varieties are globally F -regular.We give another proof simpler than the original one. Introduction.Let p be a prime number, k an algebraically closed field of characteristic p, and G a simply connected, semisimple affine algebraic group over k.Let T be a maximal …