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四阶Duffing方程周期解的存在性

贾秀利1,2, 卢秀双1, 冀书关1   

  1. 1. 吉林大学 数学学院, 长春 130012; 2. 吉林粮食高等专科学校, 长春 130062
  • 收稿日期:2006-06-23 修回日期:1900-01-01 出版日期:2007-03-26 发布日期:2007-03-26
  • 通讯作者: 贾秀利

Existence of Periodic Solutions for Fourth Order Duffing Equations

JIA Xiuli1,2, LU Xiushuang1, JI Shu guan1   

  1. 1. College of Mathematics, Jilin University, Changchun 130012, China;2. Jilin Grain College, Changchun 130062, China
  • Received:2006-06-23 Revised:1900-01-01 Online:2007-03-26 Published:2007-03-26
  • Contact: JIA Xiuli

摘要: 利用拓扑度理论, 证明了四阶Duffing方程 x(4)+x′+g(x)=e(t)周期解的存在性.

关键词: Duffing方程, 周期解, 拓扑度

Abstract: The existence of periodic solutions of fourth order Duffing equations x(4)+x′+g(x)=e(t) is proved via the topological degree theory.

Key words: Duffing equation, periodic solution, topological degree

中图分类号: 

  • O175.1