TY - JOUR T1 - A Lifting Method for Fokker-Planck Equations with Drift-Admitting Jumps AU - Guo , Ningbo AU - Chen , Yaming AU - Deng , Xiaogang JO - Communications in Mathematical Research VL - 3 SP - 431 EP - 448 PY - 2022 DA - 2022/08 SN - 38 DO - http://doi.org/10.4208/cmr.2022-0012 UR - https://global-sci.org/intro/article_detail/cmr/20964.html KW - Fokker-Planck equation, drifting-admitting jump, lifting method, finite difference method. AB -

We develop in this paper a lifting method for Fokker-Planck equations with drift-admitting jumps, such that high-order finite difference schemes can be constructed directly based on grids with pure solution points. To illustrate the idea, we present as an example the construction of a fifth-order finite difference scheme. The validity of the scheme is demonstrated by conducting numerical experiments for the cases with drift admitting one jump and two jumps, respectively. Additionally, by introducing a splitting technique, we show that the lifting method can be extended to high dimensions. In particular, a two-dimensional case is studied in details to show the effectiveness of the extension.