Type IV singular bouncing cosmology from f(T) gravity

Abstract

We investigate bouncing scenario in the modified [Formula: see text] gravity, [Formula: see text] being the torsion scalar. Attention is attached to the reconstruction of [Formula: see text] able to describe type IV singular bouncing evolution, where we adopt as assumption that the bouncing and type IV singularity points coincide. In the context of the reconstructed [Formula: see text] model, we calculate the Hubble slow-roll parameters in order to determine the dynamical evolution of the cosmological system under study. The results show that the Hubble slow-roll parameters become singular at the type IV singularity indicating a dynamical instability. Moreover, we perform the stability analysis of the [Formula: see text] gravity solution where, according to the obtained result, the type IV singularity point is a saddle point in agreement with the bounce scenario.