On some physical aspects of isotropic cosmology in Riemann-Cartan spacetime

Isotropic cosmology built in the framework of the Poincare gauge theory of gravity based on sufficiently general expression of gravitational Lagrangian is considered. The derivation of cosmological equations and equations for torsion functions in the case of the most general homogeneous isotropic models is given. Physical aspects of isotropic cosmology connected with possible solution of dark energy problem and problem of cosmological singularity are discussed.