%0 Journal Article
%T F-regularity of large Schubert varieties
%A Michel Brion
%A Jesper Funch Thomsen
%J Mathematics
%D 2004
%I arXiv
%X Let G denote a connected reductive algebraic group over an algebraically closed field k and let X denote a projective G x G-equivariant embedding of G. The large Schubert varieties in X are the closures of the double cosets BgB, where B denotes a Borel subgroup of G, and g is in G. We prove that these varieties are globally F-regular in positive characteristic, resp. of globally F-regular type in characteristic 0. As a consequence, the large Schubert varieties are normal and
%U http://arxiv.org/abs/math/0408180v1