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Some iterative techniques for large CI matrices. I. Excited eigenvalues
Author(s) -
Bendazzoli G. L.,
Evangelisti S.,
Palmieri P.
Publication year - 1987
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560310411
Subject(s) - eigenvalues and eigenvectors , excited state , computation , iterative method , mathematics , computer science , algebra over a field , physics , algorithm , quantum mechanics , pure mathematics
Iterative methods for computing eigenvalues and eigenvectors of large symmetric matrices are discussed using the language of multidimensional partitioning technique. New variants are proposed and found useful particularly for the computation of highly excited states of CI matrices.