数学物理学报 ›› 2010, Vol. 30 ›› Issue (2): 525-530.

• 论文 • 上一篇    下一篇

一类二阶泛函微分方程多个周期解的存在性

田德生, 曾宪武   

  1. 1.湖北工业大学理学院|武汉 |430068|2.武汉大学数学与统计学院|武汉 430072
  • 收稿日期:2008-02-02 修回日期:2009-04-13 出版日期:2010-04-25 发布日期:2010-04-25
  • 基金资助:

    湖北工业大学科技项目(2006(5))资助.

Existence of Several Perodic Solution for a Class of Second Order Functional Differential Equations

 TIAN De-Sheng, ZENG Xian-Wu   

  1. 1.School of Science, Hubei University of Technology, |Wuhan 430068;
    2.School of Mathematics and Statistics, Wuhan University, Wuhan 430072
  • Received:2008-02-02 Revised:2009-04-13 Online:2010-04-25 Published:2010-04-25
  • Supported by:

    湖北工业大学科技项目(2006(5))资助.

摘要:

该文利用Mawhin重合度延拓定理研究了一类二阶泛函微分方程
    x''(t)+f(t, x(t), x(t-τ(t)))[x'(t)]n+a(t)x2(t)+b(t)x(t)=p(t)~(n ≥ 2).
  
  的多个周期解的问题, 得到了这类方程至少存在两个周期解的结果.

关键词: 泛函微分方程, 多个周期解, 重合度

Abstract:

By applying the continuation theorem of coincidence  degree theory developed by Mawhin, the authors study  the existence of several periodic solutions to the second order functional differential equation

  x''(t)+f(t, x(t), x(t-τ(t)))[x'(t)]n+a(t)x2(t)+b(t)x(t)=p(t)~(n ≥ 2).

 Some new results for the existence of at least two periodic solutions to such equation are obtained.

中图分类号: 

  • 34K13