A Remark on the Level Sets of the Graph of Harmonic Functions Bounded by Two Circles in Parallel Planes

被引:3
作者
Kong Shengli [1 ]
Xu Jinju [2 ]
机构
[1] Univ Sci & Technol China, Dept Math, Hefei 230026, Anhui, Peoples R China
[2] Shanghai Univ, Dept Math, Shanghai 200444, Peoples R China
来源
JOURNAL OF PARTIAL DIFFERENTIAL EQUATIONS | 2015年 / 28卷 / 03期
关键词
Harmonic function; maximum principle; level set;
D O I
10.4208/jpde.v28.n3.1
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, we find two auxiliary functions and make use of the maximum principle to study the level sets of harmonic function defined on a convex ring with homogeneous Dirichlet boundary conditions in R-2. In higher dimensions, we also have a similar result to Jagy's.
引用
收藏
页码:197 / 207
页数:11
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