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In this paper, we investigate suffcient and necessary conditions for the comparison theorem of neutral stochastic functional differential equations driven by G-Brownian motion (G-NSFDE). Moreover, the results extend the ones in the linear…

概率论 · 数学 2021-09-17 Fen-Fen Yang , Chenggui Yuan

We consider the numerical approximation of a general second order semi--linear parabolic stochastic partial differential equation (SPDE) driven by additive space-time noise. We introduce a new modified scheme using a linear functional of…

数值分析 · 数学 2016-07-20 Gabriel J Lord , Antoine Tambue

An existence and uniqueness theorem for a class of stochastic delay differential equations is presented, and the convergence of Euler approximations for these equations is proved under general conditions. Moreover, the rate of almost sure…

概率论 · 数学 2012-12-17 Istvan Gyöngy , Sotirios Sabanis

The numerical analysis of stochastic parabolic partial differential equations of the form $$ du + A(u) = f \,dt + g \, dW, $$ is surveyed, where $A$ is a partial operator and $W$ a Brownian motion. This manuscript unifies much of the theory…

数值分析 · 数学 2020-03-16 Martin Ondrejat , Andreas Prohl , Noel Walkington

The aim of this work is to analyze the finite element approximation of the two-dimensional stationary Navier-Stokes equations with non-smooth Dirichlet boundary data. The discrete approximation is obtained by considering the Navier-Stokes…

数值分析 · 数学 2026-02-09 María Gabriela Armentano , Mauricio Mendiluce

In this paper, we build the equivalence between rough differential equations driven by the lifted $G$-Brownian motion and the corresponding Stratonovich type SDE through the Wong-Zakai approximation. The quasi-surely convergence rate of…

概率论 · 数学 2020-11-11 Shige Peng , Huilin Zhang

The main result of [C. Morosi and L. Pizzocchero, Nonlinear Analysis, 2012] is presented in a variant, based on a C^infinity formulation of the Cauchy problem; in this approach, the a posteriori analysis of an approximate solution gives a…

偏微分方程分析 · 数学 2014-11-21 Carlo Morosi , Livio Pizzocchero

We consider upper bounds for the approximation error E|g(X)-g(\hat X)|^p, where X and \hat X are random variables such that \hat X is an approximation of X in the L_p-norm, and the function g belongs to certain function classes, which…

概率论 · 数学 2007-12-24 Rainer Avikainen

Stochastic evolution equations in Banach spaces with unbounded nonlinear drift and diffusion operators are considered. Under some regularity condition assumed for the solution, the rate of convergence of implicit Euler approximations is…

概率论 · 数学 2008-02-20 Istvan Gyöngy , Annie Millet

We consider a class of stochastic differential equations driven by a one dimensional Brownian motion and we investigate the rate of convergence for Wong-Zakai-type approximated solutions. We first consider the Stratonovich case, obtained…

概率论 · 数学 2018-06-06 Bilel Kacem Ben Ammou , Alberto Lanconelli

We study the strong convergence order of the Euler-Maruyama scheme for scalar stochastic differential equations with additive noise and irregular drift. We provide a general framework for the error analysis by reducing it to a weighted…

概率论 · 数学 2020-11-03 Andreas Neuenkirch , Michaela Szölgyenyi

We give bounds for the total variation distance between the solutions to two stochastic differential equations starting at the same point and with close coefficients, which applies in particular to the distance between an exact solution and…

概率论 · 数学 2022-12-12 Pierre Bras , Gilles Pagès , Fabien Panloup

In this paper, we consider the weak convergence of the Euler-Maruyama approximation for one dimensional stochastic differential equations involving the local times of the unknown process. We use a transformation in order to remove the local…

数值分析 · 数学 2017-01-18 Mohsine Benabdallah , Kamal Hiderah

This paper is concerned with fully discrete mixed finite element approximations of the time-dependent stochastic Stokes equations with multiplicative noise. A prototypical method, which comprises of the Euler-Maruyama scheme for time…

数值分析 · 数学 2020-04-28 Xiaobing Feng , Hailong Qiu

In this paper, we show how the It\^o-stochastic Magnus expansion can be used to efficiently solve stochastic partial differential equations (SPDE) with two space variables numerically. To this end, we will first discretize the SPDE in space…

数值分析 · 数学 2024-03-27 Kevin Kamm , Stefano Pagliarani , Andrea Pascucci

This paper concerns the numerical approximation for the invariant distribution of Markovian switching L\'evy-driven stochastic differential equations. By combining the tamed-adaptive Euler-Maruyama scheme with the Multi-level Monte Carlo…

Existence, uniqueness, and $L_p$-approximation results are presented for scalar stochastic differential equations (SDEs) by considering the case where, the drift coefficient has finitely many spatial discontinuities while both coefficients…

We consider anticipative Stratonovich stochastic differential equations driven by some stochastic process (not necessarily a semi-martingale). No adaptedness of initial point or vector fields is assumed. Under a simple condition on the…

概率论 · 数学 2007-05-23 Laure Coutin , Peter Friz , Nicolas Victoir

We show error estimates for a cut finite element approximation of a second order elliptic problem with mixed boundary conditions. The error estimates are of low regularity type where we consider the case when the exact solution $u \in H^s$…

数值分析 · 数学 2020-07-07 Erik Burman , Peter Hansbo , Mats G. Larson

In this paper, we study a class of one-dimensional stochastic differential equations driven by fractional Brownian motion with Hurst parameter $H>\ff 1 2$. The drift term of the equation is locally Lipschitz and unbounded in the…

概率论 · 数学 2019-01-01 Shao-Qin Zhang , Chenggui Yuan