On Kasner solution in Bianchi I f(T) cosmology
Kazan Federal University, Kremlevskaya 18, Kazan, 420008, Russia
2 Sternberg Astronomical Institute, Lomonosov Moscow State University, Moscow, 119991, Russia
* e-mail: email@example.com
Accepted: 30 April 2018
Published online: 12 May 2018
Recently the cosmological dynamics of an anisotropic Universe in f(T) gravity became an area of intense investigations. Some earlier papers devoted to this issue contain contradictory claims about the nature and propertied of vacuum solutions in this theory. The goal of the present paper is to clarify this situation. We compare properties of f(T) and f(R) vacuum solutions and outline differences between them. The Kasner solution appears to be an exact solution for the branch, and an asymptotic solution for the branch. It is shown that the Kasner solution is a past attractor if , being a past and future attractor for the branch.
© The Author(s), 2018