Quantization of the gravitational field in the neighborhood of the Schwarzschild solution in the relativistic theory of gravitation

Quantization of the relativistic theory of gravity [2] is performed by the method of group variables [1] in the neighbourhood of the spherically symmetric (Schwarzschild) solution for empty space. It is shown that the presence in the relativistic theory of gravity of the complete group of spatial-temporal symmetries makes it possible to remove unphysical degrees of freedom with the help of the group variables. The quantum hamiltonian is diagonalized in the quadratic approximation in the perturbing field and the formulation of boundary conditions in singular points of the background metric is investigated. Boundary conditions in the limiting singular point $r=m$ imply splitting of the space of states into the subspace of states localized in the region $r>m$ and the subspace of states localized in the region $r<m$. States defined in the whole range of the radial variable are also constructed. Their wave functions are “continuous” (in the sense of the flux continuity) at the point $r=m$.