Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2010-06-17
Eur.Phys.J.C70:351-361,2010
Physics
High Energy Physics
High Energy Physics - Theory
LaTeX 12 pages, typos are corrected
Scientific paper
10.1140/epjc/s10052-010-1455-7
We study FRW cosmology for a non-linear modified F(R) Horava-Lifshitz gravity which has a viable convenient counterpart. A unified description of early-time inflation and late-time acceleration is possible in this theory, but the cosmological dynamic details are generically different from the ones of the convenient viable F(R) model. Remarkably, for some specific choice of parameters they do coincide. The emergence of finite-time future singularities is investigated in detail. It is shown that these singularities can be cured by adding an extra, higher-derivative term, which turns out to be qualitatively different when compared with the corresponding one of the convenient F(R) theory.
Elizalde Emilio
Nojiri Shin'ich
Odintsov Sergei D.
Sáez-Gómez Diego
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