Liptser, Robert Sh.; Runggaldier, Wolfgang J. - In: Stochastic Processes and their Applications 38 (1991) 2, pp. 205-238
We consider a family of processes (X[var epsilon], Y[var epsilon]) where X[var epsilon] = (X[var epsilon]t) is unobservable, while Y[var epsilon] = (Y[var epsilon]t) is observable. The family is given by a model that is nonlinear in the observations, has coefficients that may be rapidly...