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arXiv · 2208.03739

Asymptotic isoperimetry on non collapsed spaces with lower Ricci bounds

Gioacchino Antonelli·Enrico Pasqualetto·Marco Pozzetta·Daniele Semola
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Abstract

This paper studies sharp and rigid isoperimetric comparison theorems and asymptotic isoperimetric properties for small and large volumes on $N$-dimensional ${\rm RCD}(K,N)$ spaces $(X,\mathsf{d},\mathscr{H}^N)$. Moreover, we obtain almost regularity theorems formulated in terms of the isoperimetric profile and enhanced consequences at the level of several functional inequalities. Most of our statements are new even in the classical setting of smooth, non compact manifolds with lower Ricci curvature bounds. The synthetic theory plays a key role via compactness and stability arguments.

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Gioacchino Antonelli, Enrico Pasqualetto, Marco Pozzetta, Daniele Semola. 2022-08-07. Asymptotic isoperimetry on non collapsed spaces with lower Ricci bounds. https://doi.org/10.1007/s00208-023-02674-y

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