Positivity in equivariant Schubert calculus
Positivity in equivariant Schubert calculus
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DOI:
10.1215/s0012-7094-01-10935-6
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发表时间:
1999-08
影响因子:
2.5
通讯作者:
W. Graham
中科院分区:
文献类型:
--
作者:
W. Graham
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.