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Auteurs principaux: Du, Wenkui, Wang, Ling, Yang, Yang
Format: Preprint
Publié: 2024
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Accès en ligne:https://arxiv.org/abs/2412.20335
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_version_ 1866910766304591872
author Du, Wenkui
Wang, Ling
Yang, Yang
author_facet Du, Wenkui
Wang, Ling
Yang, Yang
contents We prove a half-space Bernstein theorem for Allen-Cahn equation. More precisely, we show that every solution $u$ of the Allen-Cahn equation in the half-space $\overline{\mathbb{R}^n_+}:=\{(x_1,x_2,\cdots,x_n)\in\mathbb{R}^n:\,x_1\geq 0\}$ with $|u|\leq 1$, boundary value given by the restriction of a one-dimensional solution on $\{x_1=0\}$ and monotone condition $\partial_{x_n}u>0$ as well as limiting condition $\lim_{x_n\to\pm\infty}u(x',x_n)=\pm 1$ must itself be one-dimensional, and the parallel flat level sets and $\{x_1=0\}$ intersect at the same fixed angle in $(0, \fracπ{2}]$.
format Preprint
id arxiv_https___arxiv_org_abs_2412_20335
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Flat level sets of Allen-Cahn equation in half-space
Du, Wenkui
Wang, Ling
Yang, Yang
Analysis of PDEs
We prove a half-space Bernstein theorem for Allen-Cahn equation. More precisely, we show that every solution $u$ of the Allen-Cahn equation in the half-space $\overline{\mathbb{R}^n_+}:=\{(x_1,x_2,\cdots,x_n)\in\mathbb{R}^n:\,x_1\geq 0\}$ with $|u|\leq 1$, boundary value given by the restriction of a one-dimensional solution on $\{x_1=0\}$ and monotone condition $\partial_{x_n}u>0$ as well as limiting condition $\lim_{x_n\to\pm\infty}u(x',x_n)=\pm 1$ must itself be one-dimensional, and the parallel flat level sets and $\{x_1=0\}$ intersect at the same fixed angle in $(0, \fracπ{2}]$.
title Flat level sets of Allen-Cahn equation in half-space
topic Analysis of PDEs
url https://arxiv.org/abs/2412.20335