454 citations · 3.8k across the 68 of their papers we have counts for
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On Relativistic Perturbations of Second and Higher Order
M. Bruni, S. Matarrese, S. Mollerach +1
We present the results of a study of the gauge dependence of spacetime perturbations. In particular, we consider gauge invariance in general, we give a generating formula for gauge…
Singularities in Silent Universes: State of the Art
M. Bruni, H. van Elst, C. Uggla
After a brief overview of the so-called silent models and their present status, we consider the subclass of Bianchi Type--I models with a magnetic field source. Due to the presence…
Perturbations of spacetime: gauge transformations and gauge invariance at second order and beyond
Marco Bruni, Sabino Matarrese, Silvia Mollerach +1
We consider in detail the problem of gauge dependence that exists in relativistic perturbation theory, going beyond the linear approximation and treating second and higher order pe…