J4 ›› 2011, Vol. 49 ›› Issue (04): 659-663.

• 数学 • 上一篇    下一篇

扰动Benjamin方程物理模型的孤波解

许永红1, 温朝晖2, 徐惠2, 莫嘉琪3,4   

  1. 1. 蚌埠学院 数理系, 安徽 蚌埠233030|2. 安徽财经大学 统计与应用数学学院, 安徽 蚌埠233030;3. 安徽师范大学 数学系, 安徽 芜湖 241003|4. 上海高校计算科学E研究院SJTU研究所, 上海 200240
  • 收稿日期:2010-10-11 出版日期:2011-07-26 发布日期:2011-08-16
  • 通讯作者: 莫嘉琪 E-mail:mojiaqi@mail.ahnu.edu.cn

Solitary Wave Solution for Physical Model ofDisturbed Benjamin Equation

XU Yonghong1, WEN Zhaohui2, XU Hui2, MO Jiaqi3,4   

  1. 1. Department of Mathematics &|Physics, Bengbu College, Bengbu 233030, Anhui Province, China;2. School of Statistics &|Applied Mathematics, Anhui University of Finance and Economics, Bengbu 233030, Anhui Province, China|3. Department of Mathematics, Anhui Normal University, Wuhu 241003, Anhui Province, China;4. Division of Computational Science, EInstitutes of Shanghai Universities at SJTU, Shanghai 200240, China
  • Received:2010-10-11 Online:2011-07-26 Published:2011-08-16
  • Contact: MO Jiaqi E-mail:mojiaqi@mail.ahnu.edu.cn

摘要:

利用同伦映射方法研究广义非线性Benjamin方程的物理模型. 构造了相应的同伦映射, 选取了适当的初始近似, 计算了各阶相应的孤子近似解, 并对得到的孤波近似解进行精度比较, 结果表明用同伦映射方法得到的近似解具有较好的精度.

关键词: 非线性, Benjamin方程, 孤波, 近似解析解

Abstract:

The physical model of generalized nonlinear disturbed Benjamin equation was considered. The homotopic mapping method was used to construct corresponding homotopic mapping. And then suitable initial approximation was selected, and the arbitrary order approximate solution of the soliton was calculated. A weakly disturbed equation was studied. The accuracy for the obtained approximate soliton was compared, and it was found that the obtained approximate soliton by the homotopic mapping method is of a good accuracy.

Key words: nonlinear, Benjamin equation, solitary wave, approximate analytic solution

中图分类号: 

  • O175.29