NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Useful extremum principle for the variational calculation of matrix elementsVariational principles are considered for the approximate evaluation of the diagonal matrix elements of an arbitrary known linear Hermitian operator. A method is derived that is immediately applicable to the variational determination of both the off-diagonal and diagonal matrix elements of normal and modified Green's functions.
Document ID
19740040954
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Gerjuoy, E.
(Pittsburgh, University Pittsburgh, Pa., United States)
Rau, A. R. P.
Rosenberg, L.
Spruch, L.
(New York University New York, N.Y., United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1974
Publication Information
Publication: Physical Review A - General Physics
Subject Category
Mathematics
Accession Number
74A23704
Funding Number(s)
CONTRACT_GRANT: NGL-39-011-035
CONTRACT_GRANT: DA-ARO(D)-31-124-72-G92
CONTRACT_GRANT: N00014-67-A-0467-0007
CONTRACT_GRANT: DA-31-124-ARO(D)-440
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available