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

Understand

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.