  Dynamics of interaction of topological solitons (vortices) in
(2+1)-dimensional O(3) nonlinear sigma model in anisotropic case are
investigated. By numerical simulation methods is shown that the changes of
rotation frequency of isotopic spin in the fiber space leads to an oscillatory
dynamics of topological solitons. The models of interaction of oscillating
topological solitons are obtained and their properties are investigated.
