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arXiv 1003.2956math.DG
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紧型对称空间上某些主丛的极作用

Polar actions on certain principal bundles over symmetric spaces of compact type

Marco Mucha

摘要:

研究了以紧致型对称空间为基的某些主丛$G/K\to G/H$的全空间上的水平截面的极作用。在许多情况下,我们将这种行为归类为轨道等价。特别是,我们展示的例子,超极行动的cohomogeneity大于一个局部不可约的齐性空间的非负曲率不同胚对称空间。

英文摘要:

We study polar actions with horizontal sections on the total space of certain principal bundles $G/K\to G/H$ with base a symmetric space of compact type. We classify such actions up to orbit equivalence in many cases. In particular, we exhibit examples of hyperpolar actions with cohomogeneity greater than one on locally irreducible homogeneous spaces with nonnegative curvature which are not homeomorphic to symmetric spaces.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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