Noether symmetry approach in matter-dominated cosmology with variable G and Lambda
天体物理学
2008-11-26 v1
摘要
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.
引用
@article{arxiv.astro-ph/0612091,
title = {Noether symmetry approach in matter-dominated cosmology with variable G and Lambda},
author = {Alfio Bonanno and Giampiero Esposito and Claudio Rubano and Paolo Scudellaro},
journal= {arXiv preprint arXiv:astro-ph/0612091},
year = {2008}
}
备注
22 pages, 2 figures