Polynomial representatives of Schubert classes in $QH^*(G/B)$

Polynomial representatives of Schubert classes in $QH^*(G/B)$
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$QH^*(G/B)$ 中舒伯特类的多项式代表

DOI:
10.4310/mrl.2002.v9.n6.a5
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发表时间:
2002
影响因子:
1
通讯作者:
A. Mare
A. Mare
中科院分区:
数学3区
文献类型:
--
作者:
A. Mare

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我们展示了由Peterson提出并由Fulton和Woodward严格证明的G/B的量子Chvalley公式如何与Fomin、S.Gelfand和Postnikov的思想相结合而得到一个公式,该公式用生成元和关系来描述QH^*(G/B)的典范表示中的Schubert上同调类的多项式表示。
We show how the quantum Chevalley formula for G/B, as stated by Peterson and proved rigorously by Fulton and Woodward, combined with ideas of Fomin, S. Gelfand and Postnikov, leads to a formula which describes polynomial representatives of the Schubert cohomology classes in the canonical presentation of QH^*(G/B) in terms of generators and relations.