Some regularity results for $p$-harmonic mappings between Riemannian manifolds

Fuente: arXiv
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Autores principales: Guo, Chang-Yu, Xiang, Chang-Lin
Formato: Preprint
Publicado: 2018
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author Guo, Chang-Yu
Xiang, Chang-Lin
author_facet Guo, Chang-Yu
Xiang, Chang-Lin
contents Let $M$ be a $C^2$-smooth Riemannian manifold with boundary and $N$ a complete $C^2$-smooth Riemannian manifold. We show that each stationary $p$-harmonic mapping $u\colon M\to N$, whose image lies in a compact subset of $N$, is locally $C^{1,α}$ for some $α\in (0,1)$, provided that $N$ is simply connected and has non-positive sectional curvature. We also prove similar results for each minimizing $p$-harmonic mapping $u\colon M\to N$ with $u(M)$ being contained in a regular geodesic ball. Moreover, when $M$ has non-negative Ricci curvature and $N$ is simply connected and has non-positive sectional curvature, we deduce a quantitative gradient estimate for each $C^1$-smooth weakly $p$-harmonic mapping $u\colon M\to N$. Consequently, we obtain a Liouville-type theorem for $C^1$-smooth weakly $p$-harmonic mappings in the same setting.
format Preprint
id arxiv_https___arxiv_org_abs_1802_01010
institution arXiv
publishDate 2018
record_format arxiv
spellingShingle Some regularity results for $p$-harmonic mappings between Riemannian manifolds
Guo, Chang-Yu
Xiang, Chang-Lin
Differential Geometry
Analysis of PDEs
58E15, 49F22
Let $M$ be a $C^2$-smooth Riemannian manifold with boundary and $N$ a complete $C^2$-smooth Riemannian manifold. We show that each stationary $p$-harmonic mapping $u\colon M\to N$, whose image lies in a compact subset of $N$, is locally $C^{1,α}$ for some $α\in (0,1)$, provided that $N$ is simply connected and has non-positive sectional curvature. We also prove similar results for each minimizing $p$-harmonic mapping $u\colon M\to N$ with $u(M)$ being contained in a regular geodesic ball. Moreover, when $M$ has non-negative Ricci curvature and $N$ is simply connected and has non-positive sectional curvature, we deduce a quantitative gradient estimate for each $C^1$-smooth weakly $p$-harmonic mapping $u\colon M\to N$. Consequently, we obtain a Liouville-type theorem for $C^1$-smooth weakly $p$-harmonic mappings in the same setting.
title Some regularity results for $p$-harmonic mappings between Riemannian manifolds
topic Differential Geometry
Analysis of PDEs
58E15, 49F22
url https://arxiv.org/abs/1802.01010