$w$-cosmological singularities
General Relativity and Quantum Cosmology
2010-12-23 v1 High Energy Physics - Theory
Abstract
In this paper we characterize barotropic index singularities of homogeneous isotropic cosmological models. They are shown to appear in cosmologies for which the scale factor is analytical with a Taylor series in which the linear and quadratic terms are absent. Though the barotropic index of the perfect fluid is singular, the singularities are weak, as it happens for other models for which the density and the pressure are regular.
Cite
@article{arxiv.1011.3656,
title = {$w$-cosmological singularities},
author = {L. Fernández-Jambrina},
journal= {arXiv preprint arXiv:1011.3656},
year = {2010}
}
Comments
5 pp, revtex4.cls, to appear in Physical Review D