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The magnetohydrodynamics system consists of the Navier-Stokes and Maxwell's equations, coupled through multiples of nonlinear terms. Such a system forced by space-time white noise has been studied by physicists for decades, and the rigorous…

偏微分方程分析 · 数学 2021-08-11 Kazuo Yamazaki

Sufficient and necessary conditions are presented for the order-preservation of stochastic functional differential equations on $\R^d$ with non-Lipschitzian coefficients driven by the Brownian motion and Poisson processes. The sufficiency…

概率论 · 数学 2014-01-22 Xing Huang , Feng-Yu Wang

In this work, we consider rather general and broad class of Markov chains, Ito chains, that look like Euler-Maryama discretization of some Stochastic Differential Equation. The chain we study is a unified framework for theoretical analysis.…

最优化与控制 · 数学 2024-04-02 Aleksei Ustimenko , Aleksandr Beznosikov

We study the instabilities of a harmonic oscillator subject to additive and dichotomous multiplicative noise, focussing on the dependance of the instability threshold on the mass. For multiplicative noise in the damping, the instability…

统计力学 · 物理学 2015-06-11 Moshe Gitterman , David A. Kessler

We consider the stochastic thin-film equation with colored Gaussian Stratonovich noise in one space dimension and establish the existence of nonnegative weak (martingale) solutions. The construction is based on a Trotter-Kato-type…

概率论 · 数学 2022-08-02 Benjamin Gess , Manuel V. Gnann

This paper begins by giving an historical context to fractional Brownian Motion and its development. Section 2 then introduces the fractional calculus, from the Riemann-Liouville perspective. In Section 3, we introduce Brownian motion and…

概率论 · 数学 2014-01-14 Benjamin McGonegal

One of the major challenges in neuroscience is to determine how noise that is present at the molecular and cellular levels affects dynamics and information processing at the macroscopic level of synaptically coupled neuronal populations.…

无序系统与神经网络 · 物理学 2014-06-12 Paul C. Bressloff , Jay M. Newby

The friction coefficient of a particle can depend on its position as it does when the particle is near a wall. We formulate the dynamics of particles with such state-dependent friction coefficients in terms of a general Langevin equation…

软凝聚态物质 · 物理学 2009-11-13 A. W. C. Lau , T. C. Lubensky

We establish a new version of the stochastic Strichartz estimate for the stochastic convolution driven by jump noise which we apply to the stochastic nonlinear Schr\"{o}dinger equation with nonlinear multiplicative jump noise in the Marcus…

概率论 · 数学 2021-04-20 Zdzisław Brzeźniak , Wei Liu , Jiahui Zhu

In this paper, we extend the results of Elliott and Yang \cite{elliott3} and discuss the control of a stochastic process for which the driving noise is provided by a martingale associated with a semi-Markov Chain. An existence and a…

概率论 · 数学 2025-12-23 Robert J. Elliott , Zhe Yang

In this article, we give a new proof of the It\^o formula for some integral processes related to the space-time L\'evy white noise introduced in Balan (2015) as an alternative for the Gaussian white noise perturbing an SPDE. We discuss two…

概率论 · 数学 2015-05-19 Raluca M. Balan , Cheikh B. Ndongo

We consider a two-dimensional weakly dissipative dynamical system with time-periodic drift and diffusion coefficients. The average of the drift is governed by a degenerate Hamiltonian whose set of critical points has an interior. The…

概率论 · 数学 2007-05-23 Natella V. O'Bryant

Bistable autonomous systems can be found inmany areas of science. When the intrinsic noise intensity is large, these systems exhibits stochastic transitions from onemetastable steady state to another. In electronic bistable memories, these…

统计力学 · 物理学 2024-05-14 Léopold Van Brandt , Jean-Charles Delvenne

We use a white noise approach to study the problem of optimal inside control of a stochastic delay equation driven by a Brownian motion B and a Poisson random measure N. In particular, we use Hida-Malliavin calculus and the Donsker delta…

最优化与控制 · 数学 2018-06-06 Olfa Draouil , Bernt Øksendal

We develop an exactly solvable framework of Markov decision process with a finite horizon, and continuous state and action spaces. We first review the exact solution of conventional linear quadratic regulation with a linear transition and a…

机器学习 · 计算机科学 2020-12-16 Yuan Yao , Xiaolin Sun

We develop further ideas on how to construct low-dimensional models of stochastic dynamical systems. The aim is to derive a consistent and accurate model from the originally high-dimensional system. This is done with the support of centre…

chao-dyn · 物理学 2008-02-03 Chao Xu , A. J. Roberts

We investigate the dynamical behavior of pull-back trajectories for nonautonomous stochastic feedback systems with multiplicative noise. We proved that there exists a random periodic solution of this system and all pull-back trajectories…

动力系统 · 数学 2022-03-17 Zhao Dong , Weili Zhang , Zuohuan Zheng

The paper studies identification of linear systems with multiplicative noise from multiple-trajectory data. An algorithm based on the least-squares method and multiple-trajectory data is proposed for joint estimation of the nominal system…

系统与控制 · 电气工程与系统科学 2022-06-07 Yu Xing , Benjamin Gravell , Xingkang He , Karl Henrik Johansson , Tyler Summers

In this paper we study the asymptotic behavior of a stochastic approximation scheme on two timescales with set-valued drift functions and in the presence of non-additive iterate-dependent Markov noise. It is shown that the recursion on each…

系统与控制 · 计算机科学 2016-11-21 Vinayaka Yaji , Shalabh Bhatnagar

We consider in this paper travelling wave solutions to stochastic partial differential equations and corresponding wave speed. As a particular example we consider the Nagumo equation with multiplicative noise which we mainly consider in the…

数值分析 · 数学 2015-03-17 G. J. Lord , V. Thuemmler