数学理论与应用 ›› 2017, Vol. 37 ›› Issue (1): 32-37.

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抛物型方程变步长BDF2方法的后验误差估计

赵新阳, 王晚生   

  1. 长沙理工大学数学与统计学院,长沙,410114
  • 出版日期:2017-03-30 发布日期:2020-09-24

Posteriori Error Estimates for the Variable BDF2 Method for Parabolic Equations

Zhao Xinyang, Wang Wansheng   

  1. School of Mathematics and Statistics,Changsha University of Science and Technology,Changsha 410114,China
  • Online:2017-03-30 Published:2020-09-24

摘要:

本文利用变步长BDF2方法得到抛物型方程的数值解,通过二次插值获得重构解,进而给出变步长BDF2方法的后验误差估计.

关键词: 抛物型方程, 后验误差估计, 变步长, BDF2

Abstract: In this paper the posteriori error estimates to the variable BDF2method for linear parabolic equations are given by reconstructing numerical solutions via interpolation to the equations.

Key words: Parabolic equation posteriori error estimate Variable step BDF2