English

Strong convergence rate of the Euler scheme for SDEs driven by additive rough fractional noises

Numerical Analysis 2022-01-19 v1 Numerical Analysis Probability

Abstract

The strong convergence rate of the Euler scheme for SDEs driven by additive fractional Brownian motions is studied, where the fractional Brownian motion has Hurst parameter H(13,12)H\in(\frac13,\frac12) and the drift coefficient is not required to be bounded. The Malliavin calculus, the rough path theory and the 22D Young integral are utilized to overcome the difficulties caused by the low regularity of the fractional Brownian motion and the unboundedness of the drift coefficient. The Euler scheme is proved to have strong order 2H2H for the case that the drift coefficient has bounded derivatives up to order three and have strong order H+12H+\frac12 for linear cases. Numerical simulations are presented to support the theoretical results.

Keywords

Cite

@article{arxiv.2201.06003,
  title  = {Strong convergence rate of the Euler scheme for SDEs driven by additive rough fractional noises},
  author = {Chuying Huang and Xu Wang},
  journal= {arXiv preprint arXiv:2201.06003},
  year   = {2022}
}