Decimated signal diagonalization for obtaining the complete eigenspectra of large matrices

被引:20
作者
Belkic, D
Dando, PA
Taylor, HS [1 ]
Main, J
机构
[1] Univ So Calif, Dept Chem, Los Angeles, CA 90089 USA
[2] Univ Stuttgart, Inst Theoret Phys & Synerget, D-70550 Stuttgart, Germany
基金
美国国家科学基金会;
关键词
D O I
10.1016/S0009-2614(99)01215-4
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
An alternative method for obtaining high and interior eigenvalues of a dense spectrum is presented. The method takes advantage of the accurate, well-tested and fully understood algorithms for the fast Fourier transform to create, in a natural manner, a 'window' containing only a small number of eigenvalues of the spectrum. The method is easy to implement, stable, efficient and accurate. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:135 / 139
页数:5
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