Analysis of spatially inhomogeneous perturbations of the FRW cosmologies

Details Analysis of spatially inhomogeneous perturbations of the FRW cosmologies Analysis of spatially inhomogeneous perturbations of the FRW cosmologies

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvd..39.2882g&link_type=abstract

Physical Review D (Particles and Fields), Volume 39, Issue 10, 15 May 1989, pp.2882-2892

Mathematics

Logic

34

Scientific paper

We use Bardeen's gauge-invariant formalism to analyze the behavior of, and relationship between, various geometric and physical quantities of cosmological interest at the linear level. This leads to a cosmologically oriented gauge-invariant characterization of the different perturbation modes that can arise. In particular a link is made between the existence of gravitational-wave modes and the conformal curvature of hypersurfaces in spacetime. We indicate how these results can be useful in the analysis of exact solutions of the Einstein field equations.

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