Non-singular cosmological model with finite action

The formulation of quantum cosmology in the language of functional integration implies the finiteness of the action. At the same time, the class of models with finite action is extremely narrow and, at first glance, excludes models of eternal inflation, as well as open and flat universes and requires the existence of initial and final singularities. In this paper, we discuss the possibility of constructing a cosmological model with finite action, but free of singularities.