2013/11/09 by S. Basilakos, S. Capozziello, M. De Laurentis +2 · 1 citation
Physics and Astronomy · #astro-ph.CO #gr-qc #hep-th
paper · pdf · doi:10.1103/physrevd.88.103526
16 pages, 1 figure, to be published in Phys. Rev. D
arxiv created 2013/11/09 · arxiv updated 2015/06/17
We investigate the main features of the flat Friedmann-Lemaıtre-Robertson-Walker cosmological models in the f(T) teleparallel gravity. In particular, a general approach to find out exact cosmological solutions in f (T) gravity is discussed. Instead of taking into account phenomenological models, we consider as a selection criterion, the existence of Noether symmetries in the cosmological f(T) point-like Lagrangian. We find that only power-law models admit extra Noether symmetries. A complete analysis of such cosmological models is developed.