中文

经典李群 Schubert 多项式与对偶 Schubert 多项式的几何定义

代数拓扑 2015-12-31 v3 组合数学

摘要

在本文中,我们首先讨论投影 Stiefel 流形的拓扑性质,计算其上同调环并分类其上同调自同态;随后,通过将经典李群的旗流形嵌入到其对应的无限维投影 Stiefel 流形中(该流形同伦于无限维复射影空间 CP\mathbb{C}P^{\infty} 的乘积),我们定义了 Schubert 多项式和对偶 Schubert 多项式。最后,我们讨论了这些多项式的性质与计算。

关键词

引用

@article{arxiv.1210.1908,
  title  = {A Geometric Definition Of Schubert Polynomials and Dual Schubert Polynomials For Classical Lie Groups},
  author = {Zhao Xu-an and Gao Hongzhu},
  journal= {arXiv preprint arXiv:1210.1908},
  year   = {2015}
}

备注

This paper has been withdrawn by the author due to a crucial This paper have a vital error in Lemma 2.1. So the definition for Schubert polynomials are not valid for Lie groups of type B,C,D