Existence and multiplicity of periodic solutions for a class of second-order Hamiltonian systems

被引:37
|
作者
Tang, X. H. [1 ]
Jiang, Jianchu [1 ]
机构
[1] Cent South Univ, Sch Math Sci & Comp Technol, Changsha 410083, Hunan, Peoples R China
关键词
Second-order Hamiltonian systems; Periodic solution; Mountain Pass Theorem; Symmetric Mountain Pass Theorem; HOMOCLINIC SOLUTIONS; SUBHARMONIC SOLUTIONS; INDEX;
D O I
10.1016/j.camwa.2010.03.039
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We study the existence and multiplicity of periodic solutions of the following second-order Hamiltonian system u(t) + del[-K(t, u(t)) + W(t, u(t))] = 0. The existence of a nontrivial periodic solution is obtained when del W is asymptotically linear at infinity, and the existence of infinitely many periodic solutions is also obtained when del W is superlinear. (C) 2010 Elsevier Ltd. All rights reserved.
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页码:3646 / 3655
页数:10
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