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arXiv · 1008.4240

Cosmological dynamics with modified induced gravity on the normal DGP branch

Kourosh Nozari·Faeze Kiani
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Abstract

In this paper we investigate cosmological dynamics on the normal branch of a DGP-inspired scenario within a phase space approach where induced gravity is modified in the spirit of $f(R)$-theories. We apply the dynamical system analysis to achieve the stable solutions of the scenario in the normal DGP branch. Firstly, we consider a general form of the modified induced gravity and we show that there is a standard de Sitter point in phase space of the model. Then we prove that this point is stable attractor only for those $f(R)$ functions that account for late-time cosmic speed-up.

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BibTeXRIS

Kourosh Nozari, Faeze Kiani. 2012-01-08. Cosmological dynamics with modified induced gravity on the normal DGP branch. https://doi.org/10.1016/j.physletb.2012.11.060

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