EXISTENCE OF POSITIVE SOLUTIONS FOR INTEGRAL SYSTEMS OF THE WEIGHTED HARDY-LITTLEWOOD-SOBOLEV TYPE

被引:5
作者
Liu, Xiaoqian [1 ]
Lei, Yutian [2 ]
机构
[1] Nanjing Normal Univ, Sch Math Sci, Inst Math, Nanjing 210023, Jiangsu, Peoples R China
[2] Nanjing Normal Univ, Sch Math Sci, Jiangsu Key Lab NSLSCS, Nanjing 210023, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
Weighted Hardy-Littlewood-Sobolev inequality; integral system; existence of positive solution; Serrin-type condition; SINGULARITY ANALYSIS; ASYMPTOTIC-BEHAVIOR; SHARP CONSTANTS; LIOUVILLE TYPE; SYMMETRY;
D O I
10.3934/dcds.2020018
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
This paper is concerned with the existence/nonexistence of positive solutions of a weighted Hardy-Littlewood-Sobolev type integral system. Such a system is related to the extremal functions of the weighted Hardy-Littlewood-Sobolev inequality. The Serrin-type condition is critical for existence of positive solutions in L-lo(c)infinity (R-n \ {0}). When the Serrin-type condition does not hold, we prove the nonexistence by an iteration process. In addition, we find three pairs of radial solutions when the Serrin-type condition holds. One is singular, and the other two are integrable in R-n and decaying fast and slowly respectively.
引用
收藏
页码:467 / 489
页数:23
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