Kernel-based collocation methods for Zakai equations
Abstract
We examine an application of the kernel-based interpolation to numerical solutions for Zakai equations in nonlinear filtering, and aim to prove its rigorous convergence. To this end, we find the class of kernels and the structure of collocation points explicitly under which the process of iterative interpolation is stable. This result together with standard argument in error estimation shows that the approximation error is bounded by the order of the square root of the time step and the error that comes from a single step interpolation. Our theorem is well consistent with the results of numerical experiments.
Cite
@article{arxiv.1710.09090,
title = {Kernel-based collocation methods for Zakai equations},
author = {Yumiharu Nakano},
journal= {arXiv preprint arXiv:1710.09090},
year = {2019}
}
Comments
The corrected version of the paper published in Stochastics and Partial Differential Equations: Analysis and Computations (2019), Vol. 7, 476-494