Physics
Scientific paper
Jun 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000phrvd..61l4025n&link_type=abstract
Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 61, Issue 12, 15 June 2000, id.124025
Physics
1
Gravitational Waves: Theory, Post-Newtonian Approximation, Perturbation Theory, Related Approximations, Physics Of Black Holes
Scientific paper
Following the analysis started in the Friedmann-Robertson-Walker framework, we apply the method of constructing a minimal closed set of gauge-independent observables to Kasner universes, which constitute a paradigm of type Bianchi-type I anisotropic spacetimes. An adequate basis is built for this specific background, and subsequently employed in a dynamical system that is written in the framework of the quasi-Maxwellian equations. It is then found that the method can be carried out to its end and a closed dynamical system obtained. All three types of perturbation are presented and discussed in the same way, but the scalar perturbation case is only partially solved.
Klippert Renato
Motta da Silva M. C.
Novello Mario
Salim Jose M.
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