The backward Euler-Maruyama (BEM) method is employed to approximate the invariant measure of stochastic differential equations, where both the drift and the diffusion coefficient are allowed to grow super-linearly. The existence and uniqueness of the invariant measure of the numerical solution generated by the BEM method are proved and the convergence of the numerical invariant measure to the underlying one is shown. Simulations are provided to illustrate the theoretical results and demonstrate the application of our results in the area of system control.
翻译:落后的Euler-Maruyama (BEM) 方法用于近似随机差分方程的不定测量值,允许漂移和扩散系数的超线性增长,并证明BEM 方法产生的数字溶液的不定测量值的存在和独特性,并显示数字异差计量值与基本测量值的趋同性。提供了模拟,以说明理论结果并展示我们在系统控制领域应用结果的情况。