title: Describing electron correlation effects in the framework of the elongation method--elongation-MP2: formalism, implementation and efficiency.
abstract: The extension of the elongation method into description of electron correlation effects at ab intio level is presented. The formalism and implementation of the elongation-MP2 methodology is discussed. The results of calculations for model systems are presented to illustrate efficiency and accuracy of the method. Directions of the further development are highlighted.
authors.affiliation: Department of Molecular Material Sciences, Kyushu University, 6-1 Kasuga-Park, Fukuoka 816-8580, Japan. makowskm@chemia.uj.edu.pl
authors.forename: Marcin
authors.initials: M
authors.lastname: Makowski
authors.forename: Jacek
authors.initials: J
authors.lastname: Korchowiec
authors.forename: Feng Long
authors.initials: FL
authors.lastname: Gu
authors.forename: Yuriko
authors.initials: Y
authors.lastname: Aoki