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We investigate existence, uniqueness and approximation of solutions to stochastic delay differential equations (SDDEs) under Carath\'eodory-type drift coefficients. Moreover, we also assume that both drift $f=f(t,x,z)$ and diffusion…

数值分析 · 数学 2023-06-16 Paweł Przybyłowicz , Yue Wu , Xinheng Xie

We consider the initial/boundary value problem for a diffusion equation involving multiple time-fractional derivatives on a bounded convex polyhedral domain. We analyze a space semidiscrete scheme based on the standard Galerkin finite…

数值分析 · 数学 2015-06-18 Bangti Jin , Raytcho Lazarov , Yikan Liu , Zhi Zhou

We study the strong approximation of stochastic differential equations with discontinuous drift coefficients and (possibly) degenerate diffusion coefficients. To account for the discontinuity of the drift coefficient we construct an…

数值分析 · 数学 2019-04-25 Andreas Neuenkirch , Michaela Szölgyenyi , Lukasz Szpruch

This paper is concerned with numerical solutions of one-dimensional SDEs with the drift being a generalised function, in particular belonging to the H\"older-Zygmund space $C^{-\gamma}$ of negative order $-\gamma<0$ in the spatial variable.…

概率论 · 数学 2026-03-06 Luis Mario Chaparro Jáquez , Elena Issoglio , Jan Palczewski

In this paper, we consider McKean-Vlasov stochastic differential equations (MVSDEs) driven by L\'evy noise. By identifying the right equations satisfied by the solutions of the MVSDEs with shifted driving L\'evy noise, we build up a…

概率论 · 数学 2020-11-18 Wei Liu , Yulin Song , Jianliang Zhai , Tusheng Zhang

This paper introduces a new approach to generating sample paths of unknown Markovian stochastic differential equations (SDEs) using diffusion models, a class of generative AI methods commonly employed in image and video applications. Unlike…

机器学习 · 计算机科学 2026-03-17 Xuefeng Gao , Jiale Zha , Xun Yu Zhou

This paper proposes an adaptive timestep construction for an Euler-Maruyama approximation of the ergodic SDEs with a drift which is not globally Lipschitz over an infinite time interval. If the timestep is bounded appropriately, we show not…

数值分析 · 数学 2017-03-21 Wei Fang , Michael B. Giles

Continuous-time Bayesian networks is a natural structured representation language for multicomponent stochastic processes that evolve continuously over time. Despite the compact representation, inference in such models is intractable even…

人工智能 · 计算机科学 2012-05-14 Ido Cohn , Tal El-Hay , Nir Friedman , Raz Kupferman

We show a decomposition into the sum of a martingale and a deterministic quantity for time averages of the solutions to non-autonomous SDEs and for discrete-time Markov processes. In the SDE case the martingale has an explicit…

概率论 · 数学 2018-02-08 Bob Pepin

We propose two Euler-Maruyama (EM) type numerical schemes in order to approximate the invariant measure of a stochastic differential equation (SDE) driven by an $\alpha$-stable L\'evy process ($1<\alpha<2$): an approximation scheme with the…

概率论 · 数学 2023-06-21 Peng Chen , Changsong Deng , Rene Schilling , Lihu Xu

In the present article we study strong approximation of solutions of scalar stochastic differential equations (SDEs) with bounded and $\alpha$-H\"older continuous drift coefficient and constant diffusion coefficient at time point $1$.…

概率论 · 数学 2025-04-30 Simon Ellinger , Thomas Müller-Gronbach , Larisa Yaroslavtseva

In this paper, we investigate the stochastic evolution equations (SEEs) driven by $\log$-Whittle-Mat$\acute{{\mathrm{e}}}$rn (W-M) random diffusion coefficient field and $Q$-Wiener multiplicative force noise. First, the well-posedness of…

数值分析 · 数学 2022-07-05 X. Qi , M. Azaiez , C. Huang , C. Xu

We consider the problem of subspace estimation in a Bayesian setting. Since we are operating in the Grassmann manifold, the usual approach which consists of minimizing the mean square error (MSE) between the true subspace $U$ and its…

统计方法学 · 统计学 2015-05-27 Olivier Besson , Nicolas Dobigeon , Jean-Yves Tourneret

In this paper we study a second-order mean-field stochastic differential systems describing the movement of a particle under the influence of a time-dependent force, a friction, a mean-field interaction and a space and time-dependent…

概率论 · 数学 2022-10-10 T. C. Son , D. Q. Le , M. H. Duong

The random batch method provides an efficient algorithm for computing statistical properties of a canonical ensemble of interacting particles. In this work, we study the error estimates of the fully discrete random batch method, especially…

概率论 · 数学 2022-09-01 Xuda Ye , Zhennan Zhou

This paper focuses on the invariant measure of McKean-Vlasov (MV) stochastic differential equations (SDEs) with common noise (wCN) whose coefficients depend on both the state and the measure. Using the existence of the unique solution of…

概率论 · 数学 2025-09-23 Xing Chen , Xiaoyue Li , Chenggui Yuan

Consider the following stochastic differential equation driven by multiplicative noise on $\mathbb{R}^d$ with a superlinearly growing drift coefficient, \begin{align*} \mathrm{d} X_t = b (X_t) \, \mathrm{d} t + \sigma (X_t) \, \mathrm{d}…

概率论 · 数学 2025-05-07 Xiang Li , Yingjun Mo , Haoran Yang

Many natural phenomena are effectively described by interacting particle systems, which can be modeled using either deterministic or stochastic differential equations (SDEs). In this study, we specifically investigate particle systems…

偏微分方程分析 · 数学 2024-04-01 Christian Kuehn , Carlos Pulido

This paper focuses on linear-quadratic (LQ for short) mean-field games described by forward-backward stochastic differential equations (FBSDEs for short), in which the individual control region is postulated to be convex. The decentralized…

最优化与控制 · 数学 2021-04-09 Liangquan Zhang , Xun Li

Frequency domain Mie solutions to scattering from spheres have been used for a long time. However, deriving their transient analogue is a challenge as it involves an inverse Fourier transform of the spherical Hankel functions (and their…

数值分析 · 数学 2016-10-26 Jie Li , Balasubramaniam Shanker
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