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WIP and PPP: a comparison of two multimedia presentation systems in terms of the standard reference model

✍ Scribed by Elisabeth André

Book ID
114288395
Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
940 KB
Volume
18
Category
Article
ISSN
0920-5489

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Correlation effects in the PPP model of
Correlation effects in the PPP model of alternant π-electronic systems: two-point Padé approximant approach
✍ J. ČÍŽek; A. Pellégatti; J. Paldus 📂 Article 📅 1975 🏛 John Wiley and Sons 🌐 English ⚖ 955 KB

## Abstract A general procedure, based on the two‐point Padé approximant technique, is formulated, enabling an interpolation of the low‐lying energy levels of the PPP (Pariser–Parr–Pople) Hamiltonian over the divergency gap separating the asymptotic perturbation expansions in both strongly and weak