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gr-qc2011
The semi classical cosmology approximation for a Friedman Robertson Walker geometry coupled to a field
Jose L. Martinez-Morales
The semi classical cosmology approximation for a Friedman Robertson Walker geometry coupled to a field is considered. A power series of the field with coefficients that depend on t…
gr-qc2011
The Einstein's linear equation of a space-time with a homogeneous section of low dimension
Jose L. Martinez-Morales
The Einstein's linear equation of a small perturbation in a space-time with a homogeneous section of low dimension, is studied. For every harmonic mode of the horizon, there are tw…