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Extension theorems with preservation of local approximation properties of functions in the nonisotropic case

✍ Scribed by P. A. Shvartsman


Publisher
Springer US
Year
1983
Tongue
English
Weight
258 KB
Volume
22
Category
Article
ISSN
1573-8795

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πŸ“œ SIMILAR VOLUMES


First-order properties and the Hellmann–
✍ P.-O. Nerbrant; B. Roos; A. J. Sadlej πŸ“‚ Article πŸ“… 1979 πŸ› John Wiley and Sons 🌐 English βš– 526 KB

## Abstract Two distinct approaches to the calculation of first‐order properties with a limited CI wave function are discussed. One is based on the Hellmann–Feynman theorem and the other on the direct evaluation of the total energy derivative at zero perturbation. Corrections to the Hellmann–Feynma