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We investigate the weak order of convergence for space-time discrete approximations of semilinear parabolic stochastic evolution equations driven by additive square-integrable L\'evy noise. To this end, the Malliavin regularity of the…

概率论 · 数学 2018-08-28 Adam Andersson , Felix Lindner

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

We consider the numerical approximation of the mild solution to a semilinear stochastic wave equation driven by additive noise. For the spatial approximation we consider a standard finite element method and for the temporal approximation, a…

数值分析 · 数学 2023-12-06 Mihály Kovács , Annika Lang , Andreas Petersson

We establish a general theory of optimal strong error estimation for numerical approximations of a second-order parabolic stochastic partial differential equation with monotone drift driven by a multiplicative infinite-dimensional Wiener…

数值分析 · 数学 2022-03-02 Zhihui Liu , Zhonghua Qiao

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

We consider a finite element approximation of a general semi-linear stochastic partial differential equation (SPDE) driven by space-time multiplicative and additive noise. We examine the full weak convergence rate of the exponential Euler…

数值分析 · 数学 2015-07-28 Antoine Tambue , Jean Medard T. Ngnotchouye

We prove a weak rate of convergence of a fully discrete scheme for stochastic Cahn--Hilliard equation with additive noise, where the spectral Galerkin method is used in space and the backward Euler method is used in time. Compared with the…

数值分析 · 数学 2023-03-21 Meng Cai , Siqing Gan , Yaozhong Hu

We provide convergence rates for space approximations of semi-linear stochastic differential equations with multiplicative noise in a Hilbert space. The space approximations we consider are spectral Galerkin and finite elements, and the…

数值分析 · 数学 2018-12-19 Sonja Cox , Erika Hausenblas

A numerical analysis for the fully discrete approximation of an operator Lyapunov equation related to linear SPDEs (stochastic partial differential equations) driven by multiplicative noise is considered. The discretization of the Lyapunov…

数值分析 · 数学 2022-05-04 Adam Andersson , Annika Lang , Andreas Petersson , Leander Schroer

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

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

We devise a space-time tensor method for the low-rank approximation of linear parabolic evolution equations. The proposed method is a stable Galerkin method, uniformly in the discretization parameters, based on a Minimal Residual…

数值分析 · 数学 2019-09-11 Thomas Boiveau , Virginie Ehrlacher , Alexandre Ern , Anthony Nouy

This paper deals with the backward Euler method applied to semilinear parabolic stochastic partial differential equations (SPDEs) driven by additive noise. The SPDE is discretized in space by the finite element method and in time by the…

数值分析 · 数学 2020-01-01 Jean Daniel Mukam , Antoine Tambue

This work considers weak approximations of stochastic partial differential equations (SPDEs) driven by L\'evy noise. The SPDEs at hand are parabolic with additive noise processes. A weak-convergence rate for the corresponding Galerkin…

概率论 · 数学 2016-03-09 Tobias Stüwe , Andrea Barth

We first prove the equivalence of two definitions of Riemann-Liouville fractional integral on time scales, then by the concept of fractional derivative of Riemann-Liouville on time scales, we introduce fractional Sobolev spaces,…

经典分析与常微分方程 · 数学 2022-05-27 Xing Hu , Yongkun Li

Approximating the invariant measure and the expectation of the functionals for parabolic stochastic partial differential equations (SPDEs) with non-globally Lipschitz coefficients is an active research area and is far from being well…

数值分析 · 数学 2019-06-03 Jianbo Cui , Jialin Hong , Liying Sun

We consider Galerkin finite element methods for semilinear stochastic partial differential equations (SPDEs) with multiplicative noise and Lipschitz continuous nonlinearities. We analyze the strong error of convergence for spatially…

数值分析 · 数学 2014-11-26 Raphael Kruse

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

For semilinear stochastic evolution equations whose coefficients are more general than the classical global Lipschitz, we present results on the strong convergence rates of numerical discretizations. The proof of them provides a new…

数值分析 · 数学 2019-06-11 Jialin Hong , Chuying Huang , Zhihui Liu

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
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