随机微分方程Milstein方法的稳定性

The stability properties of Milstein scheme for stochastic differential equations

基于随机微分方程的两类试验方程 ,即噪声为增加噪声和附加噪声的两种情况 ,讨论了求解标量自治随机微分方程的Milstein数值方法的三种稳定性 :A 稳定性、均方稳定性和T 稳定性 .得出确定性情形的A 稳定性延伸到随机性情形时保持不变的结论 。

Based on the two types of test equations of stochastic differential equations, additive noise and multiplicative noise, the stability of Milstein numerical scheme for autonomous scalar stochastic differential equations such as the mean square stability, A stability and T stability was studied. It was shown that an extension of the deterministic A stability property holds. The figures of the mean square stability regions were presented for the case when the test equations have real parameters.