Stability of inflationary solutions driven by a changing dissipative fluid

Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology

Scientific paper

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17 pages, LaTeX 2.09, 2 figures. To be published in Classical and Quantum Gravity

Scientific paper

10.1088/0264-9381/16/5/312

In this paper the second Lyapunov method is used to study the stability of
the de Sitter phase of cosmic expansion when the source of the gravitational
field is a viscous fluid. Different inflationary scenarios related with
reheating and decay of mini-blackholes into radiation are investigated using an
effective fluid described by time--varying thermodynamical quantities.

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