Bounce cosmology from<i>F</i>(<i>R</i>) gravity and<i>F</i>(<i>R</i>) bigravity
Bounce cosmology from<i>F</i>(<i>R</i>) gravity and<i>F</i>(<i>R</i>) bigravity
We reconstruct $F(R)$ gravity models with exponential and power-law forms of the scale factor in which bounce cosmology can be realized. We explore the stability of the reconstructed models with analyzing the perturbations from the background solutions. Furthermore, we study an $F(R)$ gravity model with a sum of exponentials form …