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This paper is concerned with the strong approximation of a semi-linear stochastic wave equation with strong damping, driven by additive noise. Based on a spatial discretization performed by a spectral Galerkin method, we introduce a kind of…

数值分析 · 数学 2020-08-10 Ruisheng Qi , Xiaojie Wang

Novel fully discrete schemes are developed to numerically approximate a semilinear stochastic wave equation driven by additive space-time white noise. Spectral Galerkin method is proposed for the spatial discretization, and exponential time…

数值分析 · 数学 2020-08-10 Xiaojie Wang , Siqing Gan , Jingtian Tang

In the present work, strong approximation errors are analyzed for both the spatial semi-discretization and the spatio-temporal fully discretization of stochastic wave equations (SWEs) with cubic polynomial nonlinearities and additive…

数值分析 · 数学 2024-11-08 Ruisheng Qi , Xiaojie Wang

We consider a fully discrete scheme for nonlinear stochastic partial differential equations with non-globally Lipschitz coefficients driven by multiplicative noise in a multi-dimensional setting. Our method uses a polynomial based spectral…

数值分析 · 数学 2021-12-23 Can Huang , Jie Shen

In this article we propose a new, explicit and easily implementable numerical method for approximating a class of semilinear stochastic evolution equations with non-globally Lipschitz continuous nonlinearities. We establish strong…

概率论 · 数学 2021-11-02 Arnulf Jentzen , Primož Pušnik

Strong convergence rates for (temporal, spatial, and noise) numerical approximations of semilinear stochastic evolution equations (SEEs) with smooth and regular nonlinearities are well understood in the scientific literature. Weak…

概率论 · 数学 2021-11-02 Daniel Conus , Arnulf Jentzen , Ryan Kurniawan

We establish an optimal strong convergence rate of a fully discrete numerical scheme for second order parabolic stochastic partial differential equations with monotone drifts, including the stochastic Allen-Cahn equation, driven by an…

数值分析 · 数学 2020-05-21 Zhihui Liu , Zhonghua Qiao

The semilinear stochastic wave equation on the sphere driven by multiplicative Gaussian noise is discretized by a stochastic trigonometric integrator in time and a spectral Galerkin approximation in space based on the spherical harmonic…

数值分析 · 数学 2026-02-03 David Cohen , Stefano Di Giovacchino , Annika Lang

In this article, we develop and analyze a full discretization, based on the spatial spectral Galerkin method and the temporal drift implicit Euler scheme, for the stochastic Cahn--Hilliard equation driven by multiplicative space-time white…

数值分析 · 数学 2020-06-22 Jianbo Cui , Jialin Hong

The paper establishes the strong convergence rates of a spatio-temporal full discretization of the stochastic wave equation with nonlinear damping in dimension one and two. We discretize the SPDE by applying a spectral Galerkin method in…

数值分析 · 数学 2024-12-30 Meng Cai , David Cohen , Xiaojie Wang

In Becker and Jentzen (2019) and Becker et al. (2017), an explicit temporal semi-discretization scheme and a space-time full-discretization scheme were, respectively, introduced and analyzed for the additive noise-driven stochastic…

数值分析 · 数学 2020-10-07 Xiaojie Wang

In this paper we construct space-time full discretizations of stochastic Allen-Cahn equations driven by space-time white noise on 2D torus. The approximations are implemented by tamed exponential Euler discretization in time and spectral…

概率论 · 数学 2024-06-07 Ting Ma , Lifei Wang , Huanyu Yang

The strong convergence of an explicit full-discrete scheme is investigated for the stochastic Burgers-Huxley equation driven by additive space-time white noise, which possesses both Burgers-type and cubic nonlinearities. To discretize the…

数值分析 · 数学 2026-04-21 Yibo Wang , Wanrong Cao , Yanzhao Cao

We discretize the stochastic Allen-Cahn equation with additive noise by means of a spectral Galerkin method in space and a tamed version of the exponential Euler method in time. The resulting error bounds are analyzed for the…

数值分析 · 数学 2021-01-20 Meng Cai , Siqing Gan , Xiaojie Wang

Existence and uniqueness for semilinear stochastic evolution equations with additive noise by means of finite dimensional Galerkin approximations is established and the convergence rate of the Galerkin approximations to the solution of the…

数值分析 · 数学 2021-11-02 Dirk Blömker , Arnulf Jentzen

In this paper, we analyze Galerkin approximations for stochastic evolution equations driven by an additive Gaussian noise which is temporally white and spatially fractional with Hurst index less than or equal to $1/2$. First we regularize…

数值分析 · 数学 2020-06-08 Yanzhao Cao , Jialin Hong , Zhihui Liu

In this article, we consider the stochastic Cahn--Hilliard equation driven by space-time white noise. We discretize this equation by using a spatial spectral Galerkin method and a temporal accelerated implicit Euler method. The optimal…

数值分析 · 数学 2020-06-23 Jianbo Cui , Jialin Hong , Liying Sun

In this paper the numerical solution of non-autonomous semilinear stochastic evolution equations driven by an additive Wiener noise is investigated. We introduce a novel fully discrete numerical approximation that combines a standard…

数值分析 · 数学 2019-07-01 Raphael Kruse , Yue Wu

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

This article proposes and analyzes explicit and easily implementable temporal numerical approximation schemes for additive noise-driven stochastic partial differential equations (SPDEs) with polynomial nonlinearities such as, e.g.,…

概率论 · 数学 2021-11-02 Sebastian Becker , Arnulf Jentzen
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