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arXiv · 1907.12538

Anisotropic cosmological dynamics in $f(T)$ gravity in the presence of a perfect fluid

Maria A. Skugoreva·Alexey V. Toporensky
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Abstract

We consider the cosmological evolution of a flat anisotropic Universe in $f(T)$ gravity in the presence of a perfect fluid. It is shown that the matter content of the Universe has a significant impact of the nature of a cosmological singularity in the model studied. Depending on the parameters of the $f(T)$ function and the equation of state of the perfect fluid in question the well-known Kasner regime of general relativity can be replaced by a new anisotropic solution, or by an isotropic regime, or the cosmological singularity changes its nature to a non-standard one with a finite values of Hubble parameters. Six possible scenarios of the cosmological evolution for the model studied have been found numerically.

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Maria A. Skugoreva, Alexey V. Toporensky. 2019-07-29. Anisotropic cosmological dynamics in $f(T)$ gravity in the presence of a perfect fluid. https://doi.org/10.1140/epjc%2Fs10052-019-7251-0

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