111 citations · 229 across the 19 of their papers we have counts for
38 papers
A nonlinear Newtonian approximation to General Relativity
Oliver F. Piattella
We investigate a nonrelativistic approximation to general relativity that does not require the metric coefficients to be weak perturbations of the Minkowski metric. Instead, we ass…
More on the relativistic images produced in gravitational lensing
Angelika Ghazale, Oliver F. Piattella
We investigate the gravitational lensing properties and the formation of relativistic images associated with black holes modeled by the Reissner-Nordström and Kerr space-time geome…
Dark Coriolis Fields
Gabriele Bianchi, Federico Re, Oliver Fabio Piattella
We argue that the standard post-Newtonian expansion scheme used in General Relativity leaves room for time-space components of the metric to be of the same order of the us…
The matter with(in) CPL
Leonardo Giani, Rodrigo Von Marttens, Oliver Fabio Piattella
We introduce a two-parameter phenomenological extension of the CDM model in which the equation of state parameter of the ``dust'' fluid becomes different from zero for redshifts…
Non zero Coriolis field in Ehlers' Frame Theory
Federico Re, Oliver F. Piattella
Ehlers' Frame Theory is a class of geometric theories parameterized by and identical to the General Theory of Relativity for . The limit does not reco…
Tilt in quadratic gravity II
Waleska P. F. de Medeiros, Daniel Müller, Oliver F. Piattella +2
We investigate a tilted fluid component on a Bianchi V geometry in the theories of General Relativity (GR) and Quadratic Gravity (QG). The main objective of this work is the study…