计算物理 ›› 1990, Vol. 7 ›› Issue (4): 453-460.

• 论文 • 上一篇    下一篇

在代数多重网格法中的新插值公式

常谦顺, 李正锋   

  1. 中国科学院应用数学所, 北京 100080
  • 收稿日期:1990-05-21 出版日期:1990-12-25 发布日期:1990-12-25

NEW INTERPOLATION FORMULA IN ALGEBRAIC MULTIGRID METHOD

Chang Qianshun, Li Zhengfeng   

  1. Institute of Applied Mathematics, Academia Sinica, Beijing, 100080
  • Received:1990-05-21 Online:1990-12-25 Published:1990-12-25

摘要: 推导出代数多重网格法的一个新的插值公式。理论分析和数值计算表明这个公式很有效,且适用性强。推广了原代数多重网格法的应用范围,能够求解一些很病态的代数方程组。

关键词: 代数多重网格, 插值公式, 线性方程组

Abstract: In this paper, we present a new interpolation formula of algebraic multigrid (AM G). The AMG algorithm with this formula can solve many problems, even very ill-conditioned problems like biharmonic equation and convection-diffusion equation with discontinuous coefficient etc. The theoretical analysis and numerical experiments demonstrate that this formula is very robust and efficient, so we have extended the application range of AMG.

Key words: algebraic multigrid, interpolation formula, linear system of equations