Cosmological Models with Variable Constants.Their Solution Through Similarity Methods

Details Cosmological Models with Variable Constants.Their Solution Through Similarity Methods Cosmological Models with Variable Constants.Their Solution Through Similarity Methods

2004-04-09

arxiv.org/abs/gr-qc/0404043v1

Class.Quant.Grav. 17 (2000) 3183-3198

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

20 pages, RevTeX4

Scientific paper

10.1088/0264-9381/17/16/307

In this work we compile a few differential equations (ODEs) that arise from the relativistic equations in cosmological models that consider the ``constants'' as scalars functions dependent on time and they are described as perfect as well as viscous fluids. The general idea of the paper is to show how to solve the equations of the models through dimensional techniques (self-similarity). The results are compared with those obtained by other authors and new solutions are introduced.

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