ON INVERSE STOCHASTIC RECONSTRUCTION PROBLEM
Ключевые слова:
Ito stochastic differential equation, reconstruction problem, Meshchersky's problem, integral manifold, quasi-inversion method.Аннотация
In this paper, general reconstruction problem in the class of second-order stochastic differential
equations of the Ito type is considered for given properties of motion, when the control is included in the drift
coefficient. And the form of control parameters is determined by the quasi-inversion method, which provides
necessary and sufficient conditions for existence of a given integral manifold. Further, the solution of the
Meshchersky’s stochastic problem is given, which is one of the inverse problems of dynamics and, according to the
well-known Galiullin’s classification, refers to the restoration problem.
It is assumed that random perturbations belong to the class of processes with independent increments. To solve
the posed problem an equation of perturbed motion is drawn up by the Ito rule of stochastic differentiation. And,
further, the Erugin method in combination with the quasi-inversion method is used to construct: 1) a set of control
vector functions and 2) a set of diffusion matrices that provide necessary and sufficient conditions for a given
second-order differential equation of Ito type to have a given integral manifold.
The linear case of a stochastic problem with drift control is considered separately. In the linear setting, in
contrast to the nonlinear formulation, the conditions of solvability in the presence of random perturbations from the
class of processes with independent increments coincide with the conditions of solvability in a similar linear case in
the presence of random perturbations from the class of independent Wiener processes. Also considered is the scalar
case of the recovery problem with drift controls.
