220 citations · 220 across the 1 of their papers we have counts for
Showing gr-qcShow all
2 papers · 1 filter
gr-qc2004
On perfect fluid models in non-comoving observational spherical coordinates
Mustapha Ishak
We use null spherical (observational) coordinates to describe a class of inhomogeneous cosmological models. The proposed cosmological construction is based on the observer past nul…
gr-qc2001
Adiabatic models of the cosmological radiative era
Roberto A. Sussman, Mustapha Ishak
We consider a generalization of the Lemaitre-Tolman-Bondi (LTB) solutions by keeping the LTB metric but replacing its dust matter source by an imperfect fluid with anisotropic pres…