The main aim of this chapter is to give a family of Frobenius splittings of the cotangent bundle T*(G/P) of any flag variety G/P due to Kumar-Lauritzen-Thomsen and thus obtain a cohomology vanishing result for T* (G/P) with coefficients in the line bundles obtained by pullback from G/P. This cohomology vanishing result is applied to study the geometry of nilpotent and subregular cones.
CITATION STYLE
Cotangent bundles of flag varieties. (2005). In Progress in Mathematics (Vol. 231, pp. 153–182). Springer Basel. https://doi.org/10.1007/0-8176-4405-9_5
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