𝔖 Bobbio Scriptorium
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3 × 3 Case presentations

Book ID
113755763
Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
67 KB
Volume
12
Category
Article
ISSN
1440-2440

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3 × 3 Lemma and Protomodularit
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✍ Dominique Bourn 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 118 KB

The classical 3 = 3 lemma and snake lemma, valid in any abelian category, still Ž . hold in any quasi-pointed the map 0 ª 1 is a mono , regular, and protomodular category. Some applications are given, in this abstract context, concerning the Ž denormalization of kernel maps and the normalization of

Electron correlation effects at Sn/Si(1&
Electron correlation effects at Sn/Si(1 1 1)–3×3,3×3 and Sn/Ge(1 1 1)–3×3,3×3 reconstructions
✍ F. Flores; J. Ortega; R. Pérez; A. Charrier; F. Thibaudau; J.-M. Debever; J.-M. 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 150 KB

Electron correlation eects for the two-dimensional electron gas associated with the surface bands of the Sn/Si(1 1 1)±3  3, 3 p  3 p , Sn/Ge(1 1 1)±3  3 and 3 p  3 p reconstructions are analyzed. Unrestricted local-density-approximation (LDA) calculations enable to de®ne a many-body hamiltonian