A spatially flat Friedmann model of the Universe filled with the perfect liquid with a nonlinear homogeneous time-dependent equation of state is discussed. A gravitational equation of motion is solved. It is shown that in this case, there can result a periodic Universe rerunning cycles of space acceleration of the phantom (non-phantom) type with occurrence of cosmological singularities.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 5, pp. 16–19, May, 2011.
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Timoshkin, A.V., Savushkin, E.V. Accelerated expansion of the Friedmann Universe filled with the perfect liquid described by a nonlinear equation of state. Russ Phys J 54, 523–526 (2011). https://doi.org/10.1007/s11182-011-9648-6
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DOI: https://doi.org/10.1007/s11182-011-9648-6