Avui, dilluns 8 de juny, el Dipòsit Digital no estarà operatiu de 15:00 a 17:00 h per tasques de manteniment. Disculpeu les molèsties.
Hoy, lunes 8 de junio, el Dipòsit Digital no estará operativo de 15:00 a 17:00 h debido a tareas de mantenimiento. Disculpen las molestias.
Today, Monday, Jun 8th, the Digital Repository will be unavailable due to a system update.

Files

003446.pdf (363.98 KB)

Document type

Article

Version

Published version

Publication date

1976

All rights reserved

Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/199749

Variational localized-site cluster expansions. II. Trees and near trees

Journal Title

Authors

Director/Tutor

Journal ISSN

Volume Title

Related resource

https://doi.org/10.1063/1.432144

Abstract

Cluster expanded wavefunctions involving localized‐site states and only pair excitations between nearest neighbor sites are considered. In the case that the bonds connecting these nearest neighbor sites form a tree graph (without rings), exact matrix element formulas are obtained in terms of the inverse of a modified type of topological matrix associated with this tree graph. The treatment of some near‐tree cases, without any touching rings, is also discussed.

Subject

Termodinàmica estadística, Teoria de grafs, Arbres

Subject (English)

Statistical thermodynamics, Graph theory, Trees

Citation

Collections

Articles publicats en revistes (Física de la Matèria Condensada)

Citation

KLEIN, D.J. and GARCÍA BACH, Ma. de los Ángeles. Variational localized-site cluster expansions. II. Trees and near trees. Journal of Chemical Physics. 1976. Vol. 64, num. 4873-4877. ISSN 0021-9606. [consulted: 8 of June of 2026]. Available at: https://hdl.handle.net/2445/199749

Export metadata

JSON - METS

Share record