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arXiv 1908.07036math.DGmath.MG
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具有曲率上界的RCD空间的结构

On the structure of RCD spaces with upper curvature bounds

Vitali Kapovitch, Martin Kell, Christian Ketterer

摘要:

本文给出了曲率在Alexandrov意义下上有界的RCD空间的结构理论。特别地,我们证明了任何这样的空间是一个拓扑流形,其边界的内部等于正则点的集合。进一步地,正则点的集合是光滑流形并且是测地线凸的。在正则点周围存在DC坐标,并且距离由连续BV黎曼度量导出。

英文摘要:

We develop a structure theory for RCD spaces with curvature bounded above in Alexandrov sense. In particular, we show that any such space is a topological manifold with boundary whose interior is equal to the set of regular points. Further the set of regular points is a smooth manifold and is geodesically convex. Around regular points there are DC coordinates and the distance is induced by a continuous BV Riemannian metric.

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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