Work

A Frankel type theorem in Euclidean and hyperbolic spaces

Year: 2026
Type: preprint
Abstract: We prove that a connected mean convex region in $\mathbb{R}^{n+1}$ with at least two boundary components cannot have strictly positive mean curvature. This answers a question of Gromov. We also obtain estimates for how quickly the mean curvature must decay at infinity, and generalize this result to hyperbolic space.
Author: Xue, Haotian
Language: English
Open Access status: green
OpenAlex ID: W7161771643
Cites: 8
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Related to: 10