## 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
✦ LIBER ✦
Medians in LLD Meet Semilattices and the Case of Orders
✍ Scribed by Bruno Leclerc
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 93 KB
- Volume
- 2
- Category
- Article
- ISSN
- 1571-0653
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