This is a preview. Log in through your library . Abstract When a wave passes through a large thickness of a non-absorbing medium containing weak random irregularities of refractive index, large ...

We consider a stationary AR(1) process with ARCH(1) errors given by the stochastic difference equation $X_{t}=\alpha X_{t-1}+\sqrt{\beta +\lambda X_{t-1}^{2 ...