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arXiv · 1401.6630

Higher derivative corrections of $f(R)$ gravity with varying equation of state in the case of variable $G$ and $\Lambda$

M. Khurshudyan·B. Pourhassan·A. Pasqua
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Abstract

In this paper, we study three models of f(R) modified gravity including higher order terms based on different equation of state parameter. We also assume variable G and $\Lambda$. By using numerical analysis, we obtain the behavior of some important cosmological parameters, like the Hubble expansion H parameter and the deceleration parameter q. The statefinder diagnostics is also performed for all models.

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M. Khurshudyan, B. Pourhassan, A. Pasqua. 2014-01-26. Higher derivative corrections of $f(R)$ gravity with varying equation of state in the case of variable $G$ and $\Lambda$. https://doi.org/10.1139/cjp-2014-0283

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