Backward perturbation analysis and residual-based error bounds for the linear response eigenvalue problem

Backward perturbation analysis and residual-based error bounds for the linear response eigenvalue problem
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线性响应特征值问题的后向扰动分析和基于残差的误差界

DOI:
10.1007/s10543-014-0519-8
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发表时间:
2015-09
影响因子:
1.5
通讯作者:
Li Rencang
Li Rencang
中科院分区:
数学3区
文献类型:
--
作者:
Zhang Lei-Hong;Lin Wen-Wei;Li Rencang

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The numerical solution of a large scale linear response eigenvalue problem is often accomplished by computing a pair of deflating subspaces associated with the interesting part of the spectrum. This paper is concerned with the backward perturbation analysis for a given pair of approximate deflating subspaces or an approximate eigenquadruple. Various optimal backward perturbation bounds are obtained, as well as bounds for approximate eigenvalues computed through the pair of approximate deflating subspaces or approximate eigenquadruple. These results are reminiscent of many existing classical ones for the standard eigenvalue problem.
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