Statefinder Parameter for Varying G in Three Fluid System

Details Statefinder Parameter for Varying G in Three Fluid System Statefinder Parameter for Varying G in Three Fluid System

2011-10-18

arxiv.org/abs/1110.4053v2

Astrophys. Space Sci. (2012) 337:799-803

Physics

General Physics

5 pages, Accepted for publication in "Astrophysics and Space Science"

Scientific paper

10.1007/s10509-011-0896-2

In this work, we have considered variable G in flat FRW universe filled with the mixture of dark energy, dark matter and radiation. If there is no interaction between the three fluids, the deceleration parameter and statefinder parameters have been calculated in terms of dimensionless density parameters which can be fixed by observational data. Also the interaction between three fluids has been analyzed due to constant $G$. The statefinder parameters also calculated in two cases: pressure is constant and pressure is variable.

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