摘要翻译:
用Schubert类描述了B_n、D_n、G_2和F_4型标志流形的积分上同调环。主要工具是Bernstein-Gelfand-Gelfand和Demazure的分差算子。作为应用,我们计算了相应复代数群的周环,从而恢复了R.Marlin的结果。
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英文标题:
《A description based on Schubert classes of cohomology of flag manifolds》
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作者:
Masaki Nakagawa
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最新提交年份:
2008
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分类信息:
一级分类:Mathematics 数学
二级分类:Algebraic Topology 代数拓扑
分类描述:Homotopy theory, homological algebra, algebraic treatments of manifolds
同伦理论,同调代数,流形的代数处理
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一级分类:Mathematics 数学
二级分类:Algebraic Geometry 代数几何
分类描述:Algebraic varieties, stacks, sheaves, schemes, moduli spaces, complex geometry, quantum cohomology
代数簇,叠,束,格式,模空间,复几何,量子上同调
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英文摘要:
We describe the integral cohomology rings of the flag manifolds of types B_n, D_n, G_2 and F_4 in terms of their Schubert classes. The main tool is the divided difference operators of Bernstein-Gelfand-Gelfand and Demazure. As an application, we compute the Chow rings of the corresponding complex algebraic groups, recovering thereby the results of R. Marlin.
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PDF链接:
https://arxiv.org/pdf/0709.0785