期刊
STOCHASTIC PROCESSES AND THEIR APPLICATIONS
卷 154, 期 -, 页码 26-54出版社
ELSEVIER
DOI: 10.1016/j.spa.2022.09.005
关键词
Convergence rate; Superdiffusion; Periodic Lorentz gas; Stein?s method
资金
- NSFC, China
- Renmin University of China
- [11901569]
- [2018030249]
This article investigates the convergence rates for superdiffusion in the Boltzmann-Grad limit of the periodic Lorentz gas. By applying Stein's method, convergence rates in Wasserstein distance for discrete-time displacement and a result for the Berry-Essen type bound for continuous-time displacement are obtained.
In this article, we obtain the rates of convergence for superdiffusion in the Boltzmann-Grad limit of the periodic Lorentz gas, which is one of the fundamental models for studying diffusions in deterministic systems. In their seminal work, Marklof and Strombergsson (2011) proved the Boltzmann-Grad limit of the periodic Lorentz gas, following which Marklof and Toth (2016) established a superdiffusive central limit theorem in large time for the Boltzmann-Grad limit. Based on their work, we apply Stein's method to derive the convergence rates for the superdiffusion in the Boltzmann-Grad limit of the periodic Lorentz gas. The convergence rate in Wasserstein distance is obtained for the discrete-time displacement, while the result for the Berry-Essen type bound is presented for the continuous-time displacement.(c) 2022 Elsevier B.V. All rights reserved.
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