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Computable Error Estimates for a Nonsymmetric Eigenvalue Problem

Published online by Cambridge University Press:  07 September 2017

Hehu Xie*
Affiliation:
LSEC, ICMSEC, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, China; and School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
Manting Xie*
Affiliation:
LSEC, ICMSEC, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, China; and School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
Xiaobo Yin*
Affiliation:
School of Mathematics and Statistics & Hubei Key Laboratory of Mathematical Sciences, Central China Normal University, Wuhan 430079, China
Meiling Yue*
Affiliation:
LSEC, ICMSEC, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, China; and School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
*
*Corresponding author. Email addresses:hhxie@lsec.cc.ac.cn (H. Xie), xiemanting@lsec.cc.ac.cn (M. Xie), yinxb@mail.ccnu.edu.cn (X. Yin), yuemeiling@lsec.cc.ac.cn (M. Yue)
*Corresponding author. Email addresses:hhxie@lsec.cc.ac.cn (H. Xie), xiemanting@lsec.cc.ac.cn (M. Xie), yinxb@mail.ccnu.edu.cn (X. Yin), yuemeiling@lsec.cc.ac.cn (M. Yue)
*Corresponding author. Email addresses:hhxie@lsec.cc.ac.cn (H. Xie), xiemanting@lsec.cc.ac.cn (M. Xie), yinxb@mail.ccnu.edu.cn (X. Yin), yuemeiling@lsec.cc.ac.cn (M. Yue)
*Corresponding author. Email addresses:hhxie@lsec.cc.ac.cn (H. Xie), xiemanting@lsec.cc.ac.cn (M. Xie), yinxb@mail.ccnu.edu.cn (X. Yin), yuemeiling@lsec.cc.ac.cn (M. Yue)

Abstract

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We provide some computable error estimates in solving a nonsymmetric eigenvalue problem by general conforming finite element methods on general meshes. Based on the complementary method, we first give computable error estimates for both the original eigenfunctions and the corresponding adjoint eigenfunctions, and then we introduce a generalised Rayleigh quotient to deduce a computable error estimate for the eigenvalue approximations. Some numerical examples are presented to illustrate our theoretical results.

Information

Type
Research Article
Copyright
Copyright © Global-Science Press 2017