Stability analysis of cosmological models through Liapunov's method
Abstract
We investigate the general asymptotic behaviour of Friedman-Robertson-Walker (FRW) models with an inflaton field, scalar-tensor FRW cosmological models and diagonal Bianchi-IX models by means of Liapunov's method. This method provides information not only about the asymptotic stability of a given equilibrium point but also about its basin of attraction. This cannot be obtained by the usual methods found in the literature, such as linear stability analysis or first order perturbation techniques. Moreover, Liapunov's method is also applicable to non-autonomous systems. We use this advantadge to investigate the mechanism of reheating for the inflaton field in FRW models.
Keywords
Cite
@article{arxiv.gr-qc/0103060,
title = {Stability analysis of cosmological models through Liapunov's method},
author = {Tiago C. Charters and Ana Nunes and Jose P. Mimoso},
journal= {arXiv preprint arXiv:gr-qc/0103060},
year = {2010}
}
Comments
Latex file, 8 pages, no figures, accepted for publication in Class. & Quant. Grav