56 citations · 108 across the 7 of their papers we have counts for
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gr-qc2012★ 2 cited
Explicit expressions for optical scalars in gravitational lensing from general matter sources
Emanuel Gallo, Osvaldo M. Moreschi
We present explicit expressions for the optical scalars and the deection angle in terms of the energymomentum tensor components of matter distributions. Our work generalizes standa…
gr-qc2012★ 1 cited
Approximation Method for the Relaxed Covariant Form of the Gravitational Field Equations for Particles
Emanuel Gallo, O. M. Moreschi
We present a study of the so called relaxed field equations of general relativity in terms of a decomposition of the metric; which is designed to deal with the notion of particles.…
gr-qc2012★ 3 cited
Smooth null hypersurfaces near the horizon in the presence of tails
Carlos Kozameh, Osvaldo Moreschi, Alejandro Perez
We show that the power-law decay modes found in linear perturbations of Schwarzschild black holes, generally called tails, do not produce caustics on a naturally defined family of…