Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-01-20
Int.J.Theor.Phys.45:843-850,2006
Astronomy and Astrophysics
Astrophysics
5 pages, 1 figure, to be published in IJTP
Scientific paper
10.1007/s10773-006-9073-8
In this paper, we consider a class of five-dimensional Ricci-flat vacuum solutions, which contain two arbitrary functions $\mu(t)$ and $\nu(t)$. It is shown that $\mu(t)$ can be rewritten as a new arbitrary function $f(z)$ in terms of redshift $z$ and the $f(z)$ can be determined by choosing particular deceleration parameters $q(z)$ which gives early deceleration and late time acceleration. In this way, the $5D$ cosmological model can be reconstructed and the evolution of the universe can be determined.
Liu Hongya
Ping Yongli
Xu Lixin
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