English

Total variation distance between a jump-equation and its Gaussian approximation

Probability 2023-10-17 v3

Abstract

We deal with stochastic differential equations with jumps. In order to obtain an accurate approximation scheme, it is usual to replace the "small jumps" by a Brownian motion. In this paper, we prove that for every fixed time tt, the approximate random variable Xε_tX^\varepsilon\_t converges to the original random variable X_tX\_t in total variation distance and we estimate the error. We also give an estimate of the distance between the densities of the laws of the two random variables. These are done by using some integration by parts techniques in Malliavin calculus.

Keywords

Cite

@article{arxiv.2109.11208,
  title  = {Total variation distance between a jump-equation and its Gaussian approximation},
  author = {Vlad Bally and Yifeng Qin},
  journal= {arXiv preprint arXiv:2109.11208},
  year   = {2023}
}

Comments

This is a previous version the submitted peper arXiv:2212.07417

R2 v1 2026-06-24T06:14:51.939Z