arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1401.5378math.NAcs.NA
收藏

基于移位反幂技术的多网格方法用于特征值问题

A Multigrid Method Based On Shifted-Inverse Power Technique for Eigenvalue Problems

Xiamen University(厦门大学);Academy of Mathematics and Systems Science, Chinese Academy of Sciences(中国科学院数学与系统科学研究院);Tianjin University of Finance and Economics(天津财经大学)

Hongtao Chen, Yunhui He, Yu Li, Hehu Xie

AI总结:

本文提出基于移位反幂迭代技术的多网格方法,通过有限元方法求解特征值问题,将求解转化为多级网格上的边界值问题解序列,提升整体效率。

摘要:

本文提出了一种基于移位反幂迭代技术的多网格方法,用于通过有限元方法求解特征值问题。该方法将求解特征值问题转化为多级网格上的一系列非奇异边界值问题解。由于将困难的特征值求解转换为更容易的边界值问题求解,多网格方法可以提高整体求解效率。一些数值实验被提出以验证该新方法的效率。

英文摘要:

A multigrid method is proposed in this paper to solve eigenvalue problems by the finite element method based on the shifted-inverse power iteration technique. With this scheme, solving eigenvalue problem is transformed to a series of nonsingular solutions of boundary value problems on multilevel meshes. Since replacing the difficult eigenvalue solving by the easier solution of boundary value problems, the multigrid way can improve the overall efficiency of the eigenvalue problem solving. Some numerical experiments are presented to validate the efficiency of this new method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑