paper

Statefinder analysis of universe models with a viscous cosmic fluid and a fluid with a non-linear equation of state

arXiv:0812.2549

Abstract

In the present article we analyze, by means of the statefinder parameter formalism, some universe models introduced by Brevik and co-workers. We determine constants that earlier were left unspecified, in terms of observable quantities. It is verified that a Big Bang universe model with a fluid having a certain non-linear equation of state behaves in the same way as a model with a viscous fluid.

arXiv comment15 pages and 1 figure

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