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相关论文: Homogenization for the Poisson equation in domains…

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We study different fractional extensions of the Poisson process and generalized counting processes by introducing time-change represented by the inverse to the sums of stable and tempered stable subordinators. We state the governing…

概率论 · 数学 2026-04-02 Lyudmyla Sakhno , Artem Storozhuk

We introduce a non-homogeneous fractional Poisson process by replacing the time variable in the fractional Poisson process of renewal type with an appropriate function of time. We characterize the resulting process by deriving its non-local…

概率论 · 数学 2016-01-18 N. Leonenko , E. Scalas , M. Trinh

We place the renormalization procedure in quantum field theory into the familiar mathematical context of quantization of Poisson algebras. The Poisson algebra in question is the algebra of classical field theory Hamiltonians constructed in…

综合物理 · 物理学 2012-01-04 A. Stoyanovsky

This note gives a brief and `crash' introduction to the method of Homogenization with the use of wave equation and diffusion equation with periodic in space coefficients as instructive examples. We expose the method with the use of an…

数学物理 · 物理学 2015-12-08 Vladimir A. Vladimirov

This paper is concerned with the study of solutions to discrete parabolic equations in divergence form with random coefficients, and their convergence to solutions of a homogenized equation. It has previously been shown that if the random…

偏微分方程分析 · 数学 2012-03-27 Joseph G. Conlon , Arash Fahim

We consider the homogenization problem for the stochastic porous-medium type equation $\p_{t} u^\epsilon =\Delta f\left(T\left(\frac{x}{\ep}\right)\om,u^\ep\right)$, with a well-prepared initial datum, where $f(T(y)\om,u)$ is a stationary…

偏微分方程分析 · 数学 2022-09-15 Stefania Patrizi

A nonlinear Poisson--Boltzmann equation with transmission boundary conditions at the interface between two materials is investigated. The model describes the electrostatic potential generated by a vector of ion concentrations in a periodic…

偏微分方程分析 · 数学 2018-10-22 Klemens Fellner , Victor Kovtunenko

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

We perform the periodic homogenization (i.e. $\eps\to 0$) of the non-stationary Stokes-Nernst-Planck-Poisson system using two-scale convergence, where $\eps$ is a suitable scale parameter. The objective is to investigate the influence of…

偏微分方程分析 · 数学 2011-11-08 Nadja Ray , Adrian Muntean , Peter Knabner

The two-scale computational homogenization method is proposed for modelling of locally periodic fluid-saturated media subjected a to large deformation induced by quasistatic loading. The periodic heterogeneities are relevant to the…

数值分析 · 数学 2022-02-11 Vladimír Lukeš , Eduard Rohan

Homogenization of a stochastic nonlinear reaction-diffusion equation with a large non- linear term is considered. Under a general Besicovitch almost periodicity assumption on the coefficients of the equation we prove that the sequence of…

概率论 · 数学 2014-08-12 Paul André Razafimandimby , Mamadou Sango , Jean Louis Woukeng

We derive optimal estimates in stochastic homogenization of linear elliptic equations in divergence form in dimensions $d\ge 2$. In previous works we studied the model problem of a discrete elliptic equation on $\mathbb{Z}^d$. Under the…

偏微分方程分析 · 数学 2014-09-03 Antoine Gloria , Felix Otto

In this paper, we consider the homogenization of evolutionary incompressible purely viscous non-Newtonian flows of Carreau-Yasuda type in porous media with small perforation parameter $0< \varepsilon \ll 1$, where the small holes are…

偏微分方程分析 · 数学 2023-10-10 Yong Lu , Zhengmao Qian

This paper investigates homogenization problems for the nonlocal operators with rapidly oscillating coefficients in the cases of periodic and random statistically homogeneous micro-structures. These operators involve the fractional…

偏微分方程分析 · 数学 2026-04-15 Xiaofeng Jin , Wentao Huo , Lingwei Ma , Zhenqiu Zhang

In this article, basing upon probabilistic methods, we discuss periodic homogenization of a class of weakly coupled systems of linear elliptic and parabolic partial differential equations. Under the assumption that the systems have rapidly…

概率论 · 数学 2023-12-07 Nikola Sandrić

In this paper we prove a general homogenization result for monotone parabolic problems with an arbitrary number of microscopic scales in space as well as in time, where the scale functions are not necessarily powers of epsilon. The main…

偏微分方程分析 · 数学 2020-01-17 T. Danielsson , L. Flodén , P. Johnsen , M. Olsson Lindberg

Divergence-form operators with stationary random coefficients homogenize over large scales. We investigate the effect of certain perturbations of the medium on the homogenized coefficients. The perturbations that we consider are rare at the…

偏微分方程分析 · 数学 2013-11-20 Jean-Christophe Mourrat

In this paper we study homogenization of a class of control problems in a stationary and ergodic random environment. This problem has been mostly studied in the calculus of variations setting in connection to the homogenization of the…

偏微分方程分析 · 数学 2018-06-21 Alexander Van-Brunt

Stochastic-periodic homogenization is studied for the Maxwell equations with nonlinear and periodic electric conductivity. It is shown by the stochastic-two-scale convergence method that the sequence of solutions of a class of highly…

偏微分方程分析 · 数学 2023-12-27 Joel Fotso Tachago , Hubert Nnang

This work develops a quantitative homogenization theory for random suspensions of rigid particles in a steady Stokes flow, and completes recent qualitative results. More precisely, we establish a large-scale regularity theory for this…

偏微分方程分析 · 数学 2021-03-12 Mitia Duerinckx , Antoine Gloria