摘要

The sufficient conditions of the almost sure exponential stability of the exact solution for the stochastic pantograph differential equation are considered, with a Khasminskii-type condition. The almost sure exponential stability of the numerical solutions by the Euler-Maruyama method and the backward Euler-Maruyama method is also discussed, based on the discrete semimartingale convergence theorem. We present the sufficient conditions for the stability of the Euler-Maruyama method, with one extra condition when compared with the exact solution. We show that the backward Euler-Maruyama method can share almost the same conditions for the almost sure exponential stability as the exact solution.