Measure rigidity of synthetic lower Ricci curvature bound on Riemannian manifolds

Bang-XIan Han

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arXiv · 1902.00942

Measure rigidity of synthetic lower Ricci curvature bound on Riemannian manifolds

Bang-XIan Han

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Abstract

In this paper we investigate Lott-Sturm-Villani's synthetic lower Ricci curvature bound on Riemannian manifolds with boundary. We prove several measure rigidity results for some important functional and geometric inequalities, which completely characterize ${\rm CD}(K, \infty)$ condition and non-collapsed ${\rm CD}(K, N)$ condition on Riemannian manifolds with boundary. In particular, using $L^1$-optimal transportation theory, we prove that ${\rm CD}(K, \infty)$ condition implies geodesical convexity.

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Bang-XIan Han. 2019-02-03. Measure rigidity of synthetic lower Ricci curvature bound on Riemannian manifolds. https://arxiv.org/abs/1902.00942

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