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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 hh has a strong convergence error which is O(h1/2)O(h^{1/2}) 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.

Keywords

Cite

@article{arxiv.2411.15930,
  title  = {Strong convergence of path sensitivities},
  author = {Michael B. Giles},
  journal= {arXiv preprint arXiv:2411.15930},
  year   = {2024}
}
R2 v1 2026-06-28T20:10:38.300Z