In order to explain cosmic acceleration without invoking``dark''physics, we consider f (R)
modified gravity models, which replace the standard Einstein-Hilbert action in General …

We address the issue of constraining the class of f (R) gravity able to reproduce the
observed cosmological acceleration, by using the so-called cosmography of the Universe …

In this paper, a specific family of f (R) models that can produce the Λ CDM background
expansion history is constrained by using the currently available geometric and dynamic …

We use large-volume N-body simulations to predict the clustering of dark matter in redshift
space in f (R) modified gravity cosmologies. This is the first time that the non-linear matter …

We study the evolution of linear cosmological perturbations in f (R) models of accelerated
expansion in the physical frame where the gravitational dynamics are fourth order and the …

The acceleration of the Universe can be explained either through dark energy or through the
modification of gravity on large scales. In this paper we investigate modified gravity models …

We study cosmological constraints on metric f (R) gravity models that are designed to
reproduce the Λ CDM expansion history with modifications to gravity described by a …

We discuss the possibility that suitable modifications of gravity could account for some
amount of the radiation we observe today, in addition to the possibility of explaining the …

Testing a subset of viable cosmological models beyond general relativity, with implications
for cosmic acceleration and the dark energy associated with it, is within the reach of Rubin …

We consider cosmological modeling in f (R) theories of gravity, using both top-down and
bottom-up constructions. The top-down models are based on Robertson-Walker geometries …