Decimated signal diagonalization for obtaining the complete eigenspectra of large matrices

Authors
Belkic, D Dando, PA Taylor, HS Main, J
Citation
D. Belkic et al., Decimated signal diagonalization for obtaining the complete eigenspectra of large matrices, CHEM P LETT, 315(1-2), 1999, pp. 135-139
Citations number
8
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CHEMICAL PHYSICS LETTERS
ISSN journal
00092614 → ACNP
Volume
315
Issue
1-2
Year of publication
1999
Pages
135 - 139
Database
ISI
SICI code
0009-2614(199912)315:1-2<135:DSDFOT>2.0.ZU;2-D
Abstract
An alternative method for obtaining high and interior eigenvalues of a dens e spectrum is presented. The method takes advantage of the accurate, well-t ested and fully understood algorithms for the fast Fourier transform to cre ate, in a natural manner, a 'window' containing only a small number of eige nvalues of the spectrum. The method is easy to implement, stable, efficient and accurate. (C) 1999 Elsevier Science B.V. All rights reserved.