From moment graphs to intersection cohomology
代数几何
2007-05-23 v3
摘要
We describe a method of computing equivariant and ordinary intersection cohomology of certain varieties with actions of algebraic tori, in terms of structure of the zero- and one-dimensional orbits. The class of varieties to which our formula applies includes Schubert varieties in flag varieties and affine flag varieties. We also prove a monotonicity result on local intersection cohomology stalks.
引用
@article{arxiv.math/0008200,
title = {From moment graphs to intersection cohomology},
author = {Tom Braden and Robert MacPherson},
journal= {arXiv preprint arXiv:math/0008200},
year = {2007}
}
备注
20 pages, 1 figure