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gr-qc2003★ 5 cited
Dynamical study of the singularities of gravity in the presence of non-minimally coupled scalar fields
L. R. Abramo, L. Brenig, E. Gunzig +1
We investigate the dynamics of Einstein equations in the vicinity of the two recently described types of singularity of anisotropic and homogeneous cosmological models described by…
gr-qc1997
Back Reaction of Gravitational Perturbations
L. R. Abramo, R. H. Brandenberger, V. M. Mukhanov
The back reaction of gravitational perturbations in a homogeneous background is determined by an effective energy-momentum tensor quadratic in the perturbations. We show that this…