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| Format: | Artículo científico |
| Language: | en |
| Published: |
Sociedade Brasileira de Física
2004
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| Online Access: | https://www.redalyc.org/articulo.oa?id=46434231 |
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Table of Contents:
- Remarks on some vacuum solutions of scalar-tensor cosmological models M. E. X. Guimarães V. B. Bezerra C. Romero G. Grebot L. P. Colatto Física, Astronomía y Matemáticas We present a class of exact vacuum solutions corresponding to de Sitter and warm inflation models in theframework of scalar-tensor cosmologies. We show that in both cases the field equations reduce to planar dynamicalsystems with constraints. Then, we carry out a qualitative analysis of the models by examining thephase diagrams of the solutions near the equilibrium points. 2004 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46434231 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.2A Vol.34