Non-singular G2 stiff fluid cosmologies
General Relativity and Quantum Cosmology
2009-11-10 v1
Abstract
In this paper we analyse Abelian diagonal orthogonally transitive spacetimes with spacelike orbits for which the matter content is a stiff perfect fluid. The Einstein equations are cast in a suitable form for determining their geodesic completeness. A sufficient condition on the metric of these spacetimes is obtained, that is fairly easy to check and to implement in exact solutions. These results confirm that non-singular spacetimes are abundant among stiff fluid cosmologies.
Keywords
Cite
@article{arxiv.gr-qc/0405013,
title = {Non-singular G2 stiff fluid cosmologies},
author = {L. Fernandez-Jambrina and L. M. Gonzalez-Romero},
journal= {arXiv preprint arXiv:gr-qc/0405013},
year = {2009}
}
Comments
17 pages, LaTeX2e