Chen, Xiaohong; White, Halbert - In: Studies in Nonlinear Dynamics & Econometrics 6 (2007) 1, pp. 1000-1000
Let H be an infinite-dimensional real separable Hilbert space. Given an unknown mapping M:H (r)H that can only be observed with noise, we consider two modified Robbins-Monro procedures to estimate the zero point ?o ( H of M. These procedures work in appropriate finite dimensional sub-spaces of...