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Sobolev方程Fourier拟谱方法的长时间稳定性和收敛性

冯立新1,2,3   

  1. 1. 黑龙江大学数学系, 哈尔滨 150080; 2. 吉林大学数学研究所, 长春 130012; 3. 北京大学数学科学学院, 北京 100871
  • 收稿日期:2003-02-25 修回日期:1900-01-01 出版日期:2003-10-26 发布日期:2003-10-26
  • 通讯作者: 冯立新

Long Time Stability and Convergence of Fourier’s Pseudospectral Method for Sobo lev Equation

FENG Li-xin1,2,3   

  1. 1. Department of Mathematics, Heilongjiang University, Harbin 150080, China;2. Institute of Mathematics, Jilin University, Changchun 130012, China;3. College of Mathematics, Peking University, Beijing 100871, China
  • Received:2003-02-25 Revised:1900-01-01 Online:2003-10-26 Published:2003-10-26
  • Contact: FENG Li-xin

摘要: 考虑一维Sobolev方程的大时间问题, 构造了它的半离散和全离散拟谱逼近, 获得了时间区间0≤t<∞上一致最优阶的误差估计.

关键词: Sobolev方程, Fourier拟谱方法, 长时间稳定性和收敛性

Abstract: In this paper is considered the long time behavior for Sobolev equation in single space variable. We have constructed semi-discrete a nd full-discrete pseudospectral approximation and obtained uniform optimal error estimates in time interval 0≤t<∞.

Key words: Sobolev equation, Fourier pseudo-spectral method, long time stability and convergence

中图分类号: 

  • O241.82