Positivity in equivariant Schubert calculus

William Graham

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arXiv · math/9908172

Positivity in equivariant Schubert calculus

William Graham

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Abstract

We prove a conjecture of Dale Peterson on positivity in the multiplication in the T-equivariant cohomology of the flag variety. The theorem follows from a more general positivity result about the equivariant cohomology of varieties with actions of a solvable group with finitely many orbits. This more general result is an equivariant version of a theorem of Kumar and Nori.

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BibTeX RIS

William Graham. 1999-08-31. Positivity in equivariant Schubert calculus. https://arxiv.org/abs/math/9908172

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