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arXiv 1408.6322math.DGmath.MG
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Riemannian geometry中的针分解

Needle decompositions in Riemannian geometry

Bo'az Klartag

摘要:

将凸几何中的局部化技巧推广到里奇曲率是下界的黎曼流形的情形。简而言之,我们的方法是基于以下观察:当里奇曲率是非负的,对数凹的措施时,条件黎曼体积测量可积测地线叶理。Monge质量传递问题在我们的分析中起着重要的作用。

英文摘要:

The localization technique from convex geometry is generalized to the setting of Riemannian manifolds whose Ricci curvature is bounded from below. In a nutshell, our method is based on the following observation: When the Ricci curvature is non-negative, log-concave measures are obtained when conditioning the Riemannian volume measure with respect to an integrable geodesic foliation. The Monge mass transfer problem plays an important role in our analysis.

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