Qualitative Analysis of Early Universe Cosmologies
General Relativity and Quantum Cosmology
2015-06-25 v1 High Energy Physics - Theory
Abstract
A qualitative analysis is presented for a class of homogeneous cosmologies derived from the string effective action when a cosmological constant is present in the matter sector of the theory. Such a term has significant effects on the qualitative dynamics. For example, models exist which undergo a series of oscillations between expanding and contracting phases due to the existence of a heteroclinic cycle in the phase space. Particular analytical solutions corresponding to the equilibrium points are also found.
Keywords
Cite
@article{arxiv.gr-qc/9907043,
title = {Qualitative Analysis of Early Universe Cosmologies},
author = {Andrew P Billyard and Alan A Coley and James E Lidsey},
journal= {arXiv preprint arXiv:gr-qc/9907043},
year = {2015}
}
Comments
Submitted to Journal of Mathematical Physics, 18 pages, 4 figures, uses package "graphicx" to insert figures