Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2000-12-19
Int.J.Mod.Phys. A16 (2001) 4527-4542
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
Latex file, 9 pages, 1 figure
Scientific paper
10.1142/S0217751X0100533X
A qualitative analysis of a scalar-tensor cosmological model, with an exponential potential for the scalar field, is performed. The phase diagram for the flat case is constructed. It is shown that solutions with an initial and final inflationary behaviour appear. The conditions for which the scenario favored by supernova type Ia observations becomes an attractor in the space of the solutions are established.
Batista Antonio Brasil
Fabris Julio Cesar
Goncalves S. V. B.
Tossa Joel
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