Mimetic $F(R)$ inflation confronted with Planck and BICEP2/Keck Array
  data
  In this paper we demonstrate that in the context of mimetic $F(R)$ gravity
with Lagrange multiplier, it is possible to realize cosmologies which are
compatible with the recent BICEP2/Keck Array data. We provide some
characteristic examples for which the predicted scalar to tensor ratio can be
quite smaller in comparison to the upper limit imposed by the BICEP2/Keck Array
observations.
