216 citations · 1.8k across the 27 of their papers we have counts for
4 papers · 1 filter
Consistent long distance modification of gravity from inverse powers of the curvature
Ignacio Navarro, Karel Van Acoleyen
In this paper we study long distance modifications of gravity obtained by considering actions that are singular in the limit of vanishing curvature. In particular, we showed in a p…
On the Newtonian limit of Generalized Modified Gravity Models
Ignacio Navarro, Karel Van Acoleyen
We consider the Newtonian limit of modified theories of gravity that include inverse powers of the curvature in the action in order to explain the cosmic acceleration. It has been…
Unconventional cosmology on the (thick) brane
Ignacio Navarro, Jose Santiago
We consider the cosmology of a thick codimension 1 brane. We obtain the matching conditions leading to the cosmological evolution equations and show that when one includes matter w…
Compactifications of conformal gravity
Ignacio Navarro, Karel Van Acoleyen
We study conformal theories of gravity, i.e. those whose action is invariant under the local transformation g_{μν} -> ω^2 (x) g_{μν}. As is well known, in order to obtain Einstein…