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arXiv · astro-ph/0612091

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

Alfio Bonanno·Giampiero Esposito·Claudio Rubano·Paolo Scudellaro
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Abstract

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.

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Alfio Bonanno, Giampiero Esposito, Claudio Rubano, Paolo Scudellaro. 2006-12-04. Noether symmetry approach in matter-dominated cosmology with variable G and Lambda. https://doi.org/10.1007/s10714-006-0386-y

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