Cosmological evolutions of $F(R)$ nonlinear massive gravity
  Recently a new extended nonlinear massive gravity model has been proposed which includes the $F(R)$ modifications to dRGT model.We follow the $F(R)$ nonlinear massive gravity and study its implications on cosmological evolutions. We derive the critical points of the cosmic system and study the corresponding kinetics by performing the phase-plane analysis. 
De-Jun Wu
hep-th gr-qc