Smoothing Out Spatially Closed Cosmologies
- 17 December 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 53 (25) , 2445-2448
- https://doi.org/10.1103/physrevlett.53.2445
Abstract
We discuss a smoothing-out procedure that deforms a family of locally inhomogeneous and anisotropic spatially closed cosmological models into closed Friedmann-Robertson-Walker universes. This gives a precise content to the averaging hypothesis tacitly assumed in cosmology by providing explicitly the correction terms to the physical sources induced on smoothing out the space-time geometry. The consequences of such terms on the dynamics of the Universe are discussed.Keywords
This publication has 4 references indexed in Scilit:
- Deforming metrics in the direction of their Ricci tensorsJournal of Differential Geometry, 1983
- Three-manifolds with positive Ricci curvatureJournal of Differential Geometry, 1982
- The prospects of detecting gravitational background radiation by Doppler tracking interplanetary spacecraftThe Astrophysical Journal, 1980
- The Large Scale Structure of Space-TimePublished by Cambridge University Press (CUP) ,1973