Canonical quantization of gravitation and quantum geometrodynamics

Representation in the form of continual Faddeev-Popov integral to solve quantum geometrodynamics (QGD) equations is obtained. An equivalence between QGD and gravitation canonical quantization in unitary gauges is shown. By pre-assigned gravitational field state on the initial Cauchi hypersurface a wave function of the closed Universe is constructed that satisfies QGD equations. Proceeding from canonical quantization principles probable interpretation of this wave function close to the Everett concept of quantum mechanics is derived