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gr-qc2010
Relativistic versus Newtonian frames: emission coordinates
J. -F. Pascual-Sánchez, A. San Miguel, F. Vicente
Only a causal class among the 199 Lorentzian ones, which do not exists in the Newtonian spacetime, is privileged to construct a generic, gravity free and immediate (non retarded) r…
gr-qc2010
Curvature(s) of a light wavefront in a weak gravitational field
J. -F. Pascual-Sánchez, A. San Miguel, F. Vicente
The geometry of a light wavefront evolving from a flat wavefront under the action of weak gravity field in the 3-space associated to a post-Newtonian relativistic spacetime, is stu…