Media type: E-Article Title: BestN-term approximation in electronic structure calculations I. One-electron reduced density matrix Contributor: Flad, Heinz-Jürgen; Hackbusch, Wolfgang; Schneider, Reinhold Published: EDP Sciences, 2006 Published in: ESAIM: Mathematical Modelling and Numerical Analysis, 40 (2006) 1, Seite 49-61 Language: Not determined DOI: 10.1051/m2an:2006007 ISSN: 0764-583X; 1290-3841 Keywords: Applied Mathematics ; Modeling and Simulation ; Numerical Analysis ; Analysis ; Computational Mathematics Origination: Footnote: Access State: Open Access