Dark energy with time-dependent equation of state

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The accelerating Friedmann flat universe, filled with an ideal fluid with a linear (oscillating) inhomogeneous equation of state (EoS) depending on time, is reviewed. The equations of motions are solved. It is shown that in some cases there appears a quasi-periodic universe, which repeats the cycles of phantom-type space acceleration.
Dedicated to the 70th anniversary of Professor Iver Brevik

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General Relativity and Quantum Cosmology

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http://salesiana.dossiersoluciones.com/handle/123456789/222645

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0903.1339
 http://arxiv.org/abs/0903.1339
 Published in The Casimir Effect and Cosmology, TSPU 2008, p. 161-165

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