298 citations · 1.2k across the 34 of their papers we have counts for
4 papers · 1 filter
Scalar perturbations in a Friedmann-like metric with non-null Weyl tensor
Grasiele B. Santos, Eduardo Bittencourt, José M. Salim
In a previous work the authors have solved the Einstein equations of General Relativity for a class of metrics with constant spatial curvature, where it was found a non vanishing W…
Weyl geometry and gauge-invariant gravitation
F. P. Poulis, J. M. Salim
We provide a gauge-invariant theory of gravitation in the context of Weyl Integrable Space-Times. After making a brief review of the theory's postulates, we carefully define the ob…
The Quasi-Maxwellian Equations of General Relativity: Applications to the Perturbation Theory
M. Novello, E. Bittencourt, J. M. Salim
A comprehensive review of the equations of general relativity in the quasi-Maxwellian (QM) formalism introduced by Jordan, Ehlers and Kundt is made. Our main interest concerns its…
Friedmann-like solutions with a non-vanishing Weyl tensor
E. Bittencourt, J. M. Salim
We have solved the Einstein equations of general relativity for a class of metrics with constant spatial curvature and found a non-vanishing Weyl tensor in the presence of an energ…