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math.NA2026

A regularized truncated finite element method for degenerate parabolic stochastic PDE on non-compact graph

Jianbo Cui, Mihály Kovács, Derui Sheng

We study the numerical approximation of a class of degenerate parabolic stochastic partial differential equations on non-compact metric graphs, which naturally arise in the asympto…

math.NA2026

A scalar auxiliary variable-based semi-implicit scheme for stochastic Cahn--Hilliard equation

Jianbo Cui, Jie Shen, Derui Sheng +1

In this paper, we present a novel semi-implicit numerical scheme for the stochastic Cahn--Hilliard equation driven by multiplicative noise. By reformulating the original equation i…

math.NA2025

Superiority Of Symplectic Methods For Stochastic Hamiltonian System Via Asymptotic Error Distribution

Jialin Hong, Ge Liang, Derui Sheng

The superiority of symplectic methods for stochastic Hamiltonian systems has been widely recognized, yet the probabilistic mechanism behind this superiority remains incompletely un…

math.NA2025

A dynamic domain semi-Lagrangian method for stochastic Vlasov equations

Jianbo Cui, Derui Sheng, Chenhui Zhang +1

We propose a dynamic domain semi-Lagrangian method for stochastic Vlasov equations driven by transport noises, which arise in plasma physics and astrophysics. This method combines…

math.NA2024

Asymptotic-preserving approximations for stochastic incompressible viscous fluids and SPDEs on graph

Jianbo Cui, Derui Sheng

The long-term dynamics of particles involved in an incompressible flow with a small viscosity () and slow chemical reactions, is depicted by a class of stochastic reaction-di…