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Title of Journal: Gen Relativ Gravit

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Abbravation: General Relativity and Gravitation

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Springer US

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DOI

10.1007/s10508-008-9446-6

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1572-9532

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Numerical solutions to the cosmological 3fluid pr

Authors: Mustapha AzregAïnou
Publish Date: 2013/10/02
Volume: 45, Issue: 12, Pages: 2635-2646
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Abstract

We show that for the scalar field cosmology with exponential potential the set of values of the coupling parameter for which the solutions undergo a transient period of acceleration TPA is much larger than the set discussed in the literature The gradual inclusion of ordinary and dark matters results in an everywhere but near the origin smoother and right shifted along the time axis acceleration curve For the 3fluid problem the energy density need not exhibit a plateau during the acceleration period Much excess in the dark matter and/or ordinary matter energy densities would lead the universe to undergo an eternal deceleration expansion For the 3fluid problem with a single exponential potential we conclude that the Big Bang Nucleosynthesis constraint is not fulfilled if the universe is to undergo a TPA The 3fluid model remains a good approximation for the description of large scale structures

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  2. Statistical entropies of extremal Kaluza-Klein AdS black holes in arbitrary dimensions
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  17. Editorial note to: Wolfgang Kundt and Manfred Trümper, Contributions to the theory of gravitational radiation fields. Exact solutions of the field equations of the general theory of relativity V
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