Uniqueness results for positive harmonic functions on manifolds with nonnegative Ricci curvature and strictly convex boundary

Fuente: arXiv
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Autor principal: Cai, Xiaohan
Formato: Preprint
Publicado: 2025
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author Cai, Xiaohan
author_facet Cai, Xiaohan
contents We prove some Liouville-type theorems for positive harmonic functions on compact Riemannian manifolds with nonnegative Ricci curvature and strictly convex boundary, thereby confirming some cases of Wang's conjecture (J. Geom. Anal. 31, 2021). We further investigate Wang's conjecture on warped product manifolds and provide a partial verification of this conjecture, which also yields an alternative proof of Gu-Li's resolution of the conjecture in the $\mathbb{B}^n$ case (Math. Ann. 391, 2025). Our approach is based on a general principle of employing the P-function method to such Liouville-type results, with particular emphasis on the role of a closed conformal vector field inherent to such manifolds.
format Preprint
id arxiv_https___arxiv_org_abs_2511_09994
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Uniqueness results for positive harmonic functions on manifolds with nonnegative Ricci curvature and strictly convex boundary
Cai, Xiaohan
Analysis of PDEs
Differential Geometry
We prove some Liouville-type theorems for positive harmonic functions on compact Riemannian manifolds with nonnegative Ricci curvature and strictly convex boundary, thereby confirming some cases of Wang's conjecture (J. Geom. Anal. 31, 2021). We further investigate Wang's conjecture on warped product manifolds and provide a partial verification of this conjecture, which also yields an alternative proof of Gu-Li's resolution of the conjecture in the $\mathbb{B}^n$ case (Math. Ann. 391, 2025). Our approach is based on a general principle of employing the P-function method to such Liouville-type results, with particular emphasis on the role of a closed conformal vector field inherent to such manifolds.
title Uniqueness results for positive harmonic functions on manifolds with nonnegative Ricci curvature and strictly convex boundary
topic Analysis of PDEs
Differential Geometry
url https://arxiv.org/abs/2511.09994