Cosmography in F(G) modified gravity

Abstract

Investigating the accelerated expansion of the universe with cosmography is a best method to constraint cosmological models. In this work, in the $F(G)$ modified gravity framework, we obtain equations of motion in a flat FRW metric. Then we reconstruct the present day values of $F(G)$ and its derivatives with the cosmographic parameters on the only assumption that the universe is homogenous and isotropic on large scale. Also we investigate the conditions of cosmologically viable $F(G)$ gravity models with the fiducial data set values.

16 pages, no figures. arXiv admin note: text overlap with arXiv:1108.2789, arXiv:1010.1547, arXiv:0802.1583, arXiv:1205.3421, arXiv:0902.2982, arXiv:1104.3029 by other authors

References in corpus (5)

• Cosmography of f(R) gravity
• Dark energy, inflation and dark matter from modified F(R) gravity
• Cosmography of f(R) - brane cosmology
• Can F(R)-gravity be a viable model: the universal unification scenario for inflation, dark energy and dark matter
• Gauss-Bonnet lagrangian G ln G and cosmological exact solutions

Cited by in corpus (1)

• Energy Conditions in Extended $f(R,G,T)$ Gravity