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arXiv · 2408.10725

ABP estimate on metric measure spaces via optimal transport

Bang-Xian Han
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Abstract

By using optimal transport theory, we establish a sharp Alexandroff--Bakelman--Pucci (ABP) type estimate on metric measure spaces with synthetic Riemannian Ricci curvature lower bounds, and prove some geometric and functional inequalities including a functional ABP estimate. Our result not only extends the border of ABP estimate, but also provides an effective substitution of Jacobi fields computation in the non-smooth framework, which has potential applications to many problems in non-smooth geometric analysis.

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Bang-Xian Han. 2024-08-20. ABP estimate on metric measure spaces via optimal transport. https://arxiv.org/abs/2408.10725

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