Noether symmetry approach in matter-dominated cosmology with variable G and Lambda

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

In the framework of renormalization-group improved cosmologies, we use the Noether symmetry approach to get exact and general integration of the matter-dominated cosmological equations. This is performed by using an expression of Lambda=Lambda(G) determined by the method itself. We also work out a comparison between such a model and the concordance LambdaCDM model as to the magnitude-redshift relationship, hence showing that no appreciable differences occur.
22 pages, 2 figures

Keywords

Astrophysics

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/194077

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/astro-ph/0612091
 http://arxiv.org/abs/astro-ph/0612091
 Gen.Rel.Grav.39:189-209,2007
 doi:10.1007/s10714-006-0386-y

Collections

arXiv