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通过变分迭代方法解周期边值问题

赵树峰1,2, 余 军1,3, 魏元鸿1   

  1. 1. 吉林大学 数学研究所, 长春 130012; 2. 东北师范大学 附属中学, 长春 130021;3. 吉林大学 计算机科学与技术学院, 长春 130012
  • 收稿日期:2007-11-15 修回日期:1900-01-01 出版日期:2008-05-26 发布日期:2008-05-26
  • 通讯作者: 余 军

Variational Iteration Method for Solving PeriodicBoundary Value Problems

ZHAO Shu feng1,2, YU Jun1,3, WEI Yuanhong1   

  1. 1. Institute of Mathematics, Jilin University, Changchun 130012, China;\=2. High School Attached to Northeast Normal University, Changchun 130021, China;3. College of Computer Science and Technology, Jilin University, Changchun 130012, China
  • Received:2007-11-15 Revised:1900-01-01 Online:2008-05-26 Published:2008-05-26
  • Contact: YU Jun

摘要: 应用变分迭代方法求解微分方程的周期边值问题, 在构造校正函数表达式时引进的拉格朗日乘子由变分理论确定, 选取初始近似含有未知参数由边值条件确定. 通过两个具体算例比较精确解和由变分迭代方法得到的近似解, 表明了这种方法的有效性.

关键词: 变分迭代方法, 周期边值问题, 变分理论, 拉格朗日乘子

Abstract: We applied variational iteration method to solve periodic boundary value problems. A correction function can be easily constructed by Lagrange multiplier which can be identified by variation theory. The initial approximation can be selected with unknown parameters which can be determined via boundary value conditions. Comparing the approximate with the exact solution of two concrete examples, we can find that the variation iteration method is convenient and efficient.

Key words: variational iteration method, periodic boundary value problems, variation theory, Lagrange multiplier

中图分类号: 

  • O241.1