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This paper deals with the homogenization of the reaction-diffusion equations in a domain containing periodically distributed holes of size $\varepsilon$, with a dynamical boundary condition of reactive-diffusive type, i.e., we consider the…

偏微分方程分析 · 数学 2025-12-18 María Anguiano

This work is devoted to the effective macroscopic dynamics of a weakly damped stochastic nonlinear wave equation with a random dynamical boundary condition. The white noises are taken into account not only in the model equation defined on a…

偏微分方程分析 · 数学 2012-05-29 Guanggan Chen , Jinqiao Duan , Jian Zhang

We study a nonlinear, pseudomonotone, stochastic diffusion-convection evolution problem on a bounded spatial domain, in any space dimension, with homogeneous boundary conditions and reflection. The additive noise term is given by a…

偏微分方程分析 · 数学 2024-12-24 Niklas Sapountzoglou , Yassine Tahraoui , Guy Vallet , Aleksandra Zimmermann

We consider a microscopic model of $n$ identical axis-symmetric rigid Brownian particles suspended in a Stokes flow. We rigorously derive in the homogenization limit of many small particles a classical formula for the viscoelastic stress…

偏微分方程分析 · 数学 2025-01-13 Richard M. Höfer , Marta Leocata , Amina Mecherbet

We develop a unified method to obtain the quantitative homogenization of Stokes systems in periodically perforated domains with no-slip boundary conditions on the perforating holes. The main novelty of our paper is a quantitative analysis…

偏微分方程分析 · 数学 2024-11-27 Wenjia Jing , Yong Lu , Christophe Prange

This paper examines the temporal evolution of a two-stage stochastic model for spherical random fields. The model uses a time-fractional stochastic hyperbolic diffusion equation, which describes the evolution of spherical random fields on…

谱理论 · 数学 2024-12-10 Tareq Alodat , Quoc T. Le Gia

In {\em{Holm}, Proc. Roy. Soc. A 471 (2015)} stochastic fluid equations were derived by employing a variational principle with an assumed stochastic Lagrangian particle dynamics. Here we show that the same stochastic Lagrangian dynamics…

偏微分方程分析 · 数学 2017-10-25 Colin J Cotter , Georg A Gottwald , Darryl D Holm

We investigate the pathwise well-posedness of stochastic evolution equations perturbed by multiplicative Neumann boundary noise, such as fractional Brownian motion for $H\in(1/3,1/2]$. Combining the controlled rough path approach with the…

概率论 · 数学 2023-10-17 Alexandra Neamtu , Tim Seitz

We consider the homogenization of the compressible Navier-Stokes-Fourier equations in a randomly perforated domain in $\mathbb{R}^3$. Assuming that the particle size scales like $\varepsilon^\alpha$, where $\varepsilon>0$ is their mutual…

偏微分方程分析 · 数学 2022-04-13 Florian Oschmann

In the present paper we study stochastic homogenization for reaction-diffusion equations with stationary ergodic reactions. We first show that under suitable hypotheses, initially localized solutions to the PDE asymptotically become…

偏微分方程分析 · 数学 2018-12-05 Jessica Lin , Andrej Zlatoš

In this paper, I derive the limiting behaviour of the solutions to Poisson's equation, in a perforated domain, subject to inhomogeneous Robin boundary conditions. In the first half of the paper, I derive a generalised limit for non-periodic…

偏微分方程分析 · 数学 2022-10-04 Aaron Pim

Stochastic evolution equations with compensated Poisson noise are considered in the variational approach with monotone and coercive coefficients. Here the Poisson noise is assumed to be time-homogeneous with $\sigma$-finite intensity…

概率论 · 数学 2022-04-20 Sima Mehri , Erfan Salavati , Bijan Z. Zangeneh

In this paper, we consider the Stokes equations in a perforated domain. When the number of holes increases while their radius tends to 0, it is proven in [L. Desvillettes, F. Golse and V. Ricci. The mean field limit for solid particles in a…

偏微分方程分析 · 数学 2016-11-21 Amina Mecherbet , Matthieu Hillairet

In this paper, we present a new multiscale model reduction technique for the Stokes flows in heterogeneous perforated domains. The challenge in the numerical simulations of this problem lies in the fact that the solution contains many…

数值分析 · 数学 2016-08-26 Eric T. Chung , Maria Vasilyeva , Yating Wang

The diffusion of molecules in complex intracellular environments can be strongly influenced by spatial heterogeneity and stochasticity. A key challenge when modelling such processes using stochastic random walk frameworks is that negative…

生物物理 · 物理学 2019-01-31 Elliot J. Carr , Matthew J. Simpson

In this paper we are concerned with the homogenization property of stochastic non-homogeneous incompressible Navier-Stokes equations with rapid oscillation in a smooth bounded domain of $\mathbb{R}^d$, $d=2,3$, and driven by multiplicative…

概率论 · 数学 2026-03-24 Zhaoyang Qiu , Junlong Chen , Jinqiao Duan

Moving boundary problems allow to model systems with phase transition at an inner boundary. Driven by problems in economics and finance, in particular modeling of limit order books, we consider a stochastic and non-linear extension of the…

概率论 · 数学 2018-10-31 Marvin S. Mueller

The second Stokes problem about behaviour of the rarefied gas filling half-space is formulated. A plane, limiting half-space, makes harmonious oscillations in the plane. The kinetic equation with model integral of collisions in the form $…

数学物理 · 物理学 2011-12-07 V. A. Akimova , A. V. Latyshev , A. A. Yushkanov

In the context of infinitesimal strain plasticity with hardening, we derive a stochastic homogenization result. We assume that the coefficients of the equation are random functions: elasticity tensor, hardening parameter and flow-rule…

偏微分方程分析 · 数学 2016-04-11 M. Heida , B. Schweizer

We study the homogenization of the Dirichlet problem for the Stokes equations in $\mathbb{R}^3$ perforated by $m$ spherical particles. We assume the positions and velocities of the particles to be identically and independently distributed…

偏微分方程分析 · 数学 2024-04-24 Richard M. Höfer , Jonas Jansen