J4 ›› 2013, Vol. 51 ›› Issue (02): 164-168.

• 数学 • 上一篇    下一篇

二阶微分方程求解周期解的变分方法

贾秀利1, 王振华2, 关丽红3   

  1. 1. 吉林工商学院 基础部, 长春 130062|2. 吉林大学 数学研究所, 长春 130012;3. 长春大学 理学院, 长春 130022
  • 收稿日期:2012-09-07 出版日期:2013-03-26 发布日期:2013-03-27
  • 通讯作者: 王振华 E-mail:wangzh0610@live.cn

Periodic Solutions of Second Order Differential Equations

JIA Xiuli1, WANG Zhenhua2, GUAN Lihong3   

  1. 1. Department of Basic Course, Jilin Business and Technology College, Changchun 130062, China;2. Institute of Mathematics, Jilin University, Changchun 130012, China;3. College of Science, Changchun University, Changchun 130022, China
  • Received:2012-09-07 Online:2013-03-26 Published:2013-03-27
  • Contact: WANG Zhenhua E-mail:wangzh0610@live.cn

摘要:

利用等价变分方法研究一类二阶微分方程的周期解问题. 通过寻找适当变换, 将原来的二阶周期边值问题约化为易于求解的一阶周期边值问题, 进而求得周期解. 应用实例验证了该方法的有效性.

关键词: 微分方程, 周期解, 等价变分

Abstract:

The periodic solutions of a class of second order differential equations were studied with the equivalent variational method. By finding suitable transformation, the original secondorder periodic boundary value problem was reduced to the firstorder periodic boundary value problem in which the periodic solution is more easily obtained. Finally, the application to a class of examples was given to illustrate the potential of this method.

Key words: differential equation, periodic solution, equivalent variation

中图分类号: 

  • O175.1