Z Wang, J Xin, Z Zhang - Physica D: Nonlinear Phenomena, 2024 - Elsevier
We study a regularized interacting particle method for computing aggregation patterns and near singular solutions of a Keller–Segel (KS) chemotaxis system in two and three space …
In this paper, we study the propagation speeds of reaction-diffusion-advection fronts in time- periodic cellular and chaotic flows with Kolmogorov--Petrovsky--Piskunov (KPP) …
Z Wang, J Xin, Z Zhang - ESAIM: Mathematical Modelling and …, 2022 - esaim-m2an.org
In this paper, we study the convergence analysis for a robust stochastic structure-preserving Lagrangian numerical scheme in computing effective diffusivity of time-dependent chaotic …
Z Yang, X Li, X He, J Ming - Discrete and Continuous Dynamical Systems …, 2021 - par.nsf.gov
In this paper, we develop a sparse grid stochastic collocation method to improve the computational efficiency in handling the steady Stokes-Darcy model with random hydraulic …
C Chen, J Hong, C Huang - IMA Journal of Numerical Analysis, 2024 - academic.oup.com
We investigate stochastic modified equations to explain the mathematical mechanism of symplectic methods applied to rough Hamiltonian systems. The contribution of this paper is …
In this paper, we develop efficient stochastic structure-preserving schemes to compute the effective diffusivity for particles moving in random flows. We first introduce the motion of a …
We study an interacting particle method (IPM) for computing the large deviation rate function of entropy production for diffusion processes, with emphasis on the vanishing-noise limit and …
Z Wang, J Xin, Z Zhang - arXiv preprint arXiv:1808.06309, 2018 - hkumath.hku.hk
In this paper, we study the problem of computing the effective diffusivity for a particle moving in chaotic flows. Instead of solving a convection-diffusion type cell problem in the Eulerian …
C Huang - Journal of Differential Equations, 2023 - Elsevier
We develop a new framework for error analysis on stochastic numerical schemes, with the rough path theory and stochastic backward error analysis. Based on our approach, we prove …