On positive solutions of a class of nonlinear elliptic equations

被引:25
|
作者
Ehrnstrom, Mats
Mustafa, Octavian G.
机构
[1] Lund Univ, Dept Math, S-22100 Lund, Sweden
[2] Univ Craiova, Dept Math, Craiova, Romania
基金
美国国家科学基金会;
关键词
positive solution; nonlinear elliptic equation; exterior domain;
D O I
10.1016/j.na.2006.07.002
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We investigate the existence of positive solutions vanishing as \x\ ->+infinity to the semilinear elliptic equation Delta u + f (x, u) + g(\x\)x . del u = 0, \x\ > A > 0, in R-n, n >= 3, under mild assumptions on the functions f, g. Conditions for these solutions to be radial are also given. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1147 / 1154
页数:8
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