文章摘要
方春华,黄超兰,王建雨.Volterra型积分微分方程Chebyshev谱配置法求解[J].,2023,63(2):215-220
Volterra型积分微分方程Chebyshev谱配置法求解
Volterra type integral-differential equations solution by Chebyshev spectral collocation method
  
DOI:10.7511/dllgxb202302013
中文关键词: Volterra型积分微分方程  第二类Volterra积分方程组  Chebyshev谱配置法  Clenshaw-Curtis求积  谱精度
英文关键词: Volterra type integral-differential equation  Volterra integral equations of the second kind  Chebyshev spectral collocation method  Clenshaw-Curtis quadrature  spectral accuracy
基金项目:湖南省自然科学基金资助项目(2022JJ30276).
作者单位
方春华,黄超兰,王建雨  
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中文摘要:
      采用Chebyshev谱配置法求解Volterra型积分微分方程.首先将积分微分方程改写成等价的第二类Volterra积分方程组,再取Clenshaw-Curtis点为配置点,然后利用Clenshaw-Curtis求积法则离散方程中积分项得到配置方程组,最后给出在L∞范数空间下的误差分析,并用数值实例验证理论分析的结果.该方法既有谱精度,程序又易实现.
英文摘要:
      The Chebyshev spectral collocation method is proposed to solve Volterra type integral-differential equations. Firstly, the integral-differential equation is rewritten into an equivalent system of Volterra integral equations of the second type, and Clenshaw-Curtis point is taken as the collocation point, then Clenshaw-Curtis quadrature rule is used to discretize the integral term in the equation to obtain the collocation equations, and finally the error analysis is conducted in L∞ norm space and numerical examples are presented to verify the theoretical results. The method has spectral accuracy and is easy to implement.
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