In this paper we explore f(T,T), where T and T denote the torsion scalar and the trace of the energy-momentum tensor respectively. We impose the covariant conservation to the energy-momentum tensor and obtain a cosmological f(T,T) respectively. We impose the covariant conservation to the energy-momentum tensor and obtain a cosmological f(T,T) model. Then, we study the stability of the obtained model for power-law and de Sitter solutions and our result show that the model can be stable for some values of the input parameters, for both power-law and de Sitter solutions.
@article{arxiv.1512.04801,
title = {$f(T,\mathcal{T})$ Cosmological Models in Phase Space},
author = {M. G. Ganiou and Ines G. Salako and M. J. S. Houndjo and J. Tossa},
journal= {arXiv preprint arXiv:1512.04801},
year = {2016}
}