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The choice of trial functions in the perturbation-variation method

✍ Scribed by Paul Sitz; ]Robert Yaris

Publisher
Elsevier Science
Year
1967
Tongue
English
Weight
212 KB
Volume
1
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis

It is shown that only if one uses non-linear trial functions in a perturbation-variation method. is one actually using the specific variational condition for the perturbation equations.

πŸ“œ SIMILAR VOLUMES

On the choice of the zero-order operator
On the choice of the zero-order operator in perturbation theory
✍ Th. Hoffmann-Ostenhof; F. Mark πŸ“‚ Article πŸ“… 1972 πŸ› Elsevier Science 🌐 English βš– 210 KB

Given a basis, the matrix represntation of a hermitian operator 8 = 6(O) + 6") is partitioned 0 =O(")'+O(\*y such that@') and@'r have the same eigenvectors and the euclidenn norm ofo(l)' IS a minimum. This splitting cc\:responds to the s&called Epstein-Nesbet partition in perturbation theory. The p