Schubert Classes in the Equivariant K-Theory and Equivariant Cohomology of the Grassmannian

Schubert Classes in the Equivariant K-Theory and Equivariant Cohomology of the Grassmannian
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DOI:
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发表时间:
2005-12
期刊:
arXiv: Algebraic Geometry
影响因子:
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通讯作者:
V. Kreiman
V. Kreiman
中科院分区:
其他
文献类型:
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作者:
V. Kreiman

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我们给出了等变 K 理论和格拉斯曼函数的等变上同调中舒伯特类对 T 不动点的限制的正公式。我们的公式依赖于 Kodiyalam-Raghavan 和 Kreiman-Lakshmibai 的结果,它给出了格拉斯曼函数 T 不动点附近舒伯特簇的等变 Grobner 简并性。
We give positive formulas for the restriction of a Schubert Class to a T-fixed point in the equivariant K-theory and equivariant cohomology of the Grassmannian. Our formulas rely on a result of Kodiyalam-Raghavan and Kreiman-Lakshmibai, which gives an equivariant Grobner degeneration of a Schubert variety in the neighborhood of a T-fixed point of the Grassmannian.