Abstract:
The paper studies the limit behavior of a solution of a stochastic differential equation (SDE) without after-effect when the dependence of the equation coefficients on a parameter is nonregular and an unbounded growth in the parameter is accepted at some points of $\mathbf{R}^m $.
Keywords:nonregular dependence of the equation coefficients on the parameter, weak convergence of the modulus of an equation, equations with coefficients degenerated at the limit.