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arXiv · hep-th/0312124

Remarks on some vacuum solutions of scalar-tensor cosmological models

V. B. Bezerra·C. Romero·G. Grebot·M. E. X. Guimaraes·L. P. Colatto
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Abstract

We present a class of exact vacuum solutions corresponding to de Sitter and warm inflation models in the framework of scalar-tensor cosmologies. We show that in both cases the field equations reduce to planar dynamical systems with constraints. Then, we carry out a qualitative analysis of the models by examining the phase diagrams of the solutions near the equilibrium points.

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V. B. Bezerra, C. Romero, G. Grebot, M. E. X. Guimaraes, L. P. Colatto. 2003-12-11. Remarks on some vacuum solutions of scalar-tensor cosmological models. https://doi.org/10.1590/s0103-97332004000300032

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