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gr-qc2005
Self-similar and charged spheres in the diffusion approximation
W. Barreto, A. Da Silva
We study spherical, charged and self--similar distributions of matter in the diffusion approximation. We propose a simple, dynamic but physically meaningful solution. For such a so…
gr-qc2004
The 3-dimensional Einstein-Klein-Gordon system in characteristic numerical relativity
W. Barreto, A. Da Silva, R. Gomez +3
We incorporate a massless scalar field into a 3-dimensional code for the characteristic evolution of the gravitational field. The extended 3-dimensional code for the Einstein--Klei…