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arXiv math/0109075math.DGmath.MG
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流形非塌缩序列极限的正则性

Regularity of limits of noncollapsing sequences of manifolds

Vitali Kapovitch

摘要:

证明了具有下曲率界的非塌缩流形序列的极限的方向的迭代空间是拓扑球面。作为一个应用,我们证明了对于任何有限维的Alexandrov空间$X^n$与$n\ge 5$,存在一个Alexandrov空间$Y$同胚于$X$,它不能作为这样一个极限得到.

英文摘要:

We prove that iterated spaces of directions of a limit of a noncollapsing sequence of manifolds with lower curvature bound are topologically spheres. As an application we show that for any finite dimensional Alexandrov space $X^n$ with $n\ge 5$ there exists an Alexandrov space $Y$ homeomorphic to $X$ which can not be obtained as such a limit.

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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