Exact solutions of a Flat Full Causal Bulk viscous FRW cosmological model through factorization

Details Exact solutions of a Flat Full Causal Bulk viscous FRW cosmological model through factorization Exact solutions of a Flat Full Causal Bulk viscous FRW cosmological model through factorization

2012-04-25

arxiv.org/abs/1204.5938v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

16 pas. RevTeX4. arXiv admin note: text overlap with arXiv:gr-qc/0107004, arXiv:gr-qc/0311050 by other authors

Scientific paper

We study the classical flat full causal bulk viscous FRW cosmological model through the factorization method. The method allows to find some new exact parametric solutions for different values of the viscous parameter $s$. Special attention is given to the well known case $s=1/2$, for which the cosmological model admits scaling symmetries. Also, some exact parametric solutions for $s=1/2$ are obtained through the Lie group method.

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