The universe seen at different scales
General Relativity and Quantum Cosmology
2007-05-23 v2 Astrophysics
Abstract
A large-scale smoothed-out model of the universe ignores small-scale inhomogeneities, but the averaged effects of those inhomogeneities may alter both observational and dynamical relations at the larger scale. This article discusses these effects, and comments briefly on the relation to gravitational entropy.
Keywords
Cite
@article{arxiv.gr-qc/0506106,
title = {The universe seen at different scales},
author = {G. F. R. Ellis and T. Buchert},
journal= {arXiv preprint arXiv:gr-qc/0506106},
year = {2007}
}
Comments
17 pages; matches published version in Phys. Lett. A (Einstein special issue)