Superpotential method for chiral cosmological models connected with modified gravity
Superpotential method for chiral cosmological models connected with modified gravity
We consider chiral cosmological models (CCMs) and modified gravity theories associated with them. Generalization of the superpotential method for a general CCM with several scalar fields is performed, and the method of construction CCMs admitting exact solutions is developed. New classes of exact solutions in the two-component CCM connected with …