Saddle point characterization and multiplicity of periodic solutions of non-autonomous second-order systems

被引：39

作者：

Wu, X ^{[1
]}

机构：

[1] Yunnan Normal Univ, Dept Math, Kunming 650092, Yunnan, Peoples R China

[2] Chinese Acad Sci, Inst Math, Beijing 100080, Peoples R China

来源：

NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS | 2004年 / 58卷 / 7-8期

基金：

中国国家自然科学基金;

关键词：

critical point; non-autonomous second-order systems; Sobolev's inequality;

D O I：

10.1016/j.na.2004.05.020

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

In the present paper, the non-autonomous second-order systems [GRAPHICS] and [GRAPHICS] are studied and a existence result of periodic solutions with saddle point character and two new multiplicity results are obtained. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：899 / 907

页数：9

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