## lectures at Columbia University

- W. Fulton, Equivariant cohomology in algebraic geometry
- notes by D. Anderson,
- 2007

Graham deduces this from a more general result about varieties with finitely many unipotent orbits, which is proved using induction and a calculation in the rank-one case. The goal of this note is to give a short, geometric proof of Graham’s positivity theorem, based on a transversality argument. Here I only discuss type A, but other types work as well… (More)

Sorry, we couldn't extract any figures or tables for this paper.