Cancellation of the zero-mode singularities in soliton quantization theory

We give a proof of an exact cancellation of the zero-mode singularities in each order of the loop expansion determining the quantum corrections to soliton (particle-like) solutions of classical field equations. The cancellation restores an underlying symmetry broken by a specific classical solution, and is owing to the stability of the soliton with respect to small perturbation generated by the symmetry group transformations.