本文引入随机环境干扰,将非线性时间序列GARCH模型推广为REGARCH模型,并讨论REGARCH模型的几何遍历性及伴随几何遍历性-By introducing random environmental disturbance, the nonlinear time series model to the REGARCH GARCH model, and discuss REGARCH model with the geometric ergodicity and geometric ergod