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arXiv 1502.00410math.AT
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Schubert演算与李群的上同调。部件II。紧李群

Schubert calculus and cohomology of Lie groups. Part II. Compact Lie groups

Haibao Duan

摘要:

设$G$是具有极大环面$T$的紧李群.在\cite{DZ1}中给出旗流形$G/T$的积分上同调环$H^{\ast}(G/T)$的基础上,我们在\cite{DZ2}中给出了$1$ -连通李群$G$的积分上同调环$H^{\ast}(G)$的一个明确的统一的构造.本文将这一构造推广到所有紧李群。

英文摘要:

Let $G$ be a compact Lie group with a maximal torus $T$. Based on a presentation of the integral cohomology ring $H^{\ast}(G/T)$ of the flag manifold $G/T$ in \cite{DZ1}we have presented in \cite{DZ2}an explicit and unified construction of the integral cohomology rings $H^{\ast}(G)$ for the $1$--connected Lie groups $G$. In this paper we extend this construction to all compact Lie groups.

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