Variational upper and lower bounds for t
β
Yu.Yu. Dmitriev; M.S. Yuriev
π
Article
π
1969
π
Elsevier Science
π
English
β 285 KB
The method of the evaluation of the upper and lower bounds of the second-order perturbation of the energy is described. The calculation of upper and lower bounds for the second-order perturbation of the energy in l/Z expansions for two-electron atoms are given.