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This paper investigates the two-dimensional stochastic steady-state Navier-Stokes(NS) equations with additive random noise. We introduce an innovative splitting method that decomposes the stochastic NS equations into a deterministic NS…

数值分析 · 数学 2025-04-23 Jie Zhu , Yujun Zhu , Ju Ming , Max D. Gunzburger

We propose a semidiscrete scheme for approximation of entropy solutions of one-dimensional scalar conservation laws with nonnegative initial data. The scheme is based on the concept of particle paths for conservation laws and can be…

偏微分方程分析 · 数学 2025-04-16 Magnus C. Ørke

We develop a fully discrete, semi-implicit mixed finite element method for approximating solutions to a class of fourth-order stochastic partial differential equations (SPDEs) with non-globally Lipschitz and non-monotone nonlinearities,…

数值分析 · 数学 2026-02-17 Beniamin Goldys , Agus L. Soenjaya , Thanh Tran

We discrete the ergodic semilinear stochastic partial differential equations in space dimension $d \leq 3$ with additive noise, spatially by a spectral Galerkin method and temporally by an exponential Euler scheme. It is shown that both the…

数值分析 · 数学 2020-06-16 Ziheng Chen , Siqing Gan , Xiaojie Wang

In this work, we provide the first strong convergence result of numerical approximation of a general second order semilinear stochastic fractional order evolution equation involving a Caputo derivative in time of order $\alpha\in(\frac 34,…

数值分析 · 数学 2021-09-08 Aurelien Junior Noupelah , Antoine Tambue

We derive conditional a priori error estimates of a wide class of finite volume and Runge-Kutta discontinuous Galerkin methods with abstract limiting for hyperbolic systems of conservation laws in 1D via the verification of weak consistency…

数值分析 · 数学 2025-06-23 Fabio Leotta

We consider a class of linear Vlasov partial differential equations driven by Wiener noise. Different types of stochastic perturbations are treated: additive noise, multiplicative It\^o and Stratonovich noise, and transport noise. We…

数值分析 · 数学 2024-03-01 Charles-Edouard Bréhier , David Cohen

In this paper, we present an energy-preserving exponentially integrable numerical method for stochastic wave equation with cubic nonlinearity and additive noise. We first apply the spectral Galerkin method to discretizing the original…

数值分析 · 数学 2021-04-14 Jianbo Cui , Jialin Hong , Lihai Ji , Liying Sun

We prove that the unique entropy solution to a scalar nonlinear conservation law with strictly monotone velocity and nonnegative initial condition can be rigorously obtained as the large particle limit of a microscopic follow-the-leader…

偏微分方程分析 · 数学 2015-06-19 Marco Di Francesco , Massimiliano D. Rosini

We consider the stochastic nonlinear Schroedinger equation driven by a multiplicative noise in a semiclassical regime, where the Plank constant is small. In this regime, the solution of the equation exhibits high-frequency oscillations. We…

数值分析 · 数学 2024-08-20 Lihai Ji , Zhihui Liu

This paper is concerned with entropy solutions of scalar conservation laws of the form $\partial_{t}u+\diver f=0$ in $\mathbb{R}^d\times(0,\infty)$. The flux $f=f(x,u)$ depends explicitly on the spatial variable $x$. Using an extension of…

偏微分方程分析 · 数学 2025-08-07 Paz Hashash

We analyze the qualitative properties and the order of convergence of a splitting scheme for a class of nonlinear stochastic Schr\"odinger equations driven by additive It\^o noise. The class of nonlinearities of interest includes nonlocal…

数值分析 · 数学 2022-11-16 Charles-Edouard Bréhier , David Cohen

Herein, we analyze an efficient branching particle method for asymptotic solutions to a class of continuous-discrete filtering problems. Suppose that $t\to X_t$ is a Markov process and we wish to calculate the measure-valued process…

概率论 · 数学 2007-05-23 Michael A. Kouritzin , Wei Sun

In this paper, we develop two energy-preserving splitting methods for solving three-dimensional stochastic Maxwell equations driven by multiplicative noise. We use operator splitting methods to decouple stochastic Maxwell equations into…

数值分析 · 数学 2025-12-30 Liying Zhang , Xinyue Kang , Lihai Ji

We prove a weak error estimate for the approximation in space and time of a semilinear stochastic Volterra integro-differential equation driven by additive space-time Gaussian noise. We treat this equation in an abstract framework, in which…

数值分析 · 数学 2016-03-15 Adam Andersson , Mihály Kovács , Stig Larsson

This paper analyzes a space-time finite element method for fractional wave problems. The method uses a Petrov-Galerkin type time-stepping scheme to discretize the time fractional derivative of order $ \gamma $ ($1<\gamma<2$). We establish…

数值分析 · 数学 2018-03-12 Binjie Li , Hao Luo , Xiaoping Xie

The main difficulty in studying numerical method for stochastic evolution equations (SEEs) lies in the treatment of the time discretization (J. Printems. [ESAIM Math. Model. Numer. Anal. (2001)]). Although fruitful results on numerical…

数值分析 · 数学 2023-04-03 Jialin Hong , Derui Sheng , Tau Zhou

In this paper we analyze the convergence of the splitting method for shallow water equations. In particular, we give an analytical estimation of the time step which is necessary for the convergence and then we study the behaviour of the…

funct-an · 数学 2008-02-03 Maria Morandi Cecchi , Luca Salasnich

In this paper, we consider a new approach for semi-discretization in time and spatial discretization of a class of semi-linear stochastic partial differential equations (SPDEs) with multiplicative noise. The drift term of the SPDEs is only…

数值分析 · 数学 2023-07-10 Yukun Li , Liet Vo , Guanqian Wang

This paper considers the numerical analysis of a semilinear fractional diffusion equation with nonsmooth initial data. A new Gr\"onwall's inequality and its discrete version are proposed. By the two inequalities, error estimates in three…

数值分析 · 数学 2019-09-04 Binjie Li , Tao Wang , Xiaoping Xie