$\mathrm{C}^2$ estimates for general $p$-Hessian equations on closed Riemannian manifolds

Fuente: arXiv
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Main Author: Qiao, Yuxiang
Format: Preprint
Published: 2025
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author Qiao, Yuxiang
author_facet Qiao, Yuxiang
contents We study the $\mathrm{C}^2$ estimates for $p$-Hessian equations with general left-hand and right-hand terms on closed Riemannian manifolds of dimension $n$. To overcome the constraints of closed manifolds, we advance a new kind of "subsolution", called pseudo-solution, which generalizes "$\mathcal{C}$-subsolution" to some extent and is well-defined for fully general $p$-Hessian equations. Based on pseudo-solutions, we prove the $\mathrm{C}^1$ estimates for general $p$-Hessian equations, and the corresponding second-order estimates when $p\in\{2, n-1, n\}$, under sharp conditions -- we don't impose curvature restrictions, convexity conditions or "MTW condition" on our main results. Some other conclusions related to a priori estimates and different kinds of "subsolutions" are also given, including estimates for "semi-convex" solutions and when there exists a pseudo-solution.
format Preprint
id arxiv_https___arxiv_org_abs_2508_10773
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle $\mathrm{C}^2$ estimates for general $p$-Hessian equations on closed Riemannian manifolds
Qiao, Yuxiang
Analysis of PDEs
Differential Geometry
35B45, 58J05 (Primary) 35J60, 35R01 (Secondary)
We study the $\mathrm{C}^2$ estimates for $p$-Hessian equations with general left-hand and right-hand terms on closed Riemannian manifolds of dimension $n$. To overcome the constraints of closed manifolds, we advance a new kind of "subsolution", called pseudo-solution, which generalizes "$\mathcal{C}$-subsolution" to some extent and is well-defined for fully general $p$-Hessian equations. Based on pseudo-solutions, we prove the $\mathrm{C}^1$ estimates for general $p$-Hessian equations, and the corresponding second-order estimates when $p\in\{2, n-1, n\}$, under sharp conditions -- we don't impose curvature restrictions, convexity conditions or "MTW condition" on our main results. Some other conclusions related to a priori estimates and different kinds of "subsolutions" are also given, including estimates for "semi-convex" solutions and when there exists a pseudo-solution.
title $\mathrm{C}^2$ estimates for general $p$-Hessian equations on closed Riemannian manifolds
topic Analysis of PDEs
Differential Geometry
35B45, 58J05 (Primary) 35J60, 35R01 (Secondary)
url https://arxiv.org/abs/2508.10773