Gravitational four-fermion interaction and dynamics of the early
  Universe
  If torsion exists, it generates gravitational four-fermion interaction
(GFFI), essential on the Planck scale. We analyze the influence of this
interaction on the Friedmann-Lemaitre-Robertson-Walker cosmology. Explicit
analytical solution is derived for the problem where both the energy-momentum
tensor generated by GFFI and the common ultrarelativistic energy-momentum
tensor are included. We demonstrate that gravitational four-fermion interaction
does not result in Big Bounce.
