Strong convergence of path sensitivities
Numerical Analysis
2024-11-26 v1 Numerical Analysis
Abstract
It is well known that the Euler-Maruyama discretisation of an autonomous SDE using a uniform timestep has a strong convergence error which is when the drift and diffusion are both globally Lipschitz. This note proves that the same is true for the approximation of the path sensitivity to changes in a parameter affecting the drift and diffusion, assuming the appropriate number of derivatives exist and are bounded. This seems to fill a gap in the existing stochastic numerical analysis literature.
Cite
@article{arxiv.2411.15930,
title = {Strong convergence of path sensitivities},
author = {Michael B. Giles},
journal= {arXiv preprint arXiv:2411.15930},
year = {2024}
}