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Organic spectroscopy under Björn O. Roos

✍ Scribed by Luis Serrano-Andrés


Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
88 KB
Volume
111
Category
Article
ISSN
0020-7608

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Björn O. Roos (1937–2010)
✍ Werner Kutzelnigg 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 173 KB

Hjalmars in Stockholm über die "zero differential overlap"-Näherung, die in der damals dominierenden semi-empirischen Quantenchemie eine wichtige Rolle spielte. Er war als Postdoktorand ein Jahr in der Gruppe von Enrico Clementi am IBM Research Institute in San Jose (USA), wo er in die relativ neue

Björn O. Roos (1937–2010)
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Perspective: Björn Roos and direct confi
✍ Isaiah Shavitt 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 64 KB

## Abstract The introduction, impact, and development of the direct configuration interaction (CI) approach are reviewed. The removal of the limitation on the size of CI calculation by eliminating the need to store the Hamiltonian matrix and the streamlining of the calculation of the eigenvector up