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This article is concerned with numerical methods to approximate effective coefficients in stochastic homogenization of discrete linear elliptic equations, and their numerical analysis --- which has been made possible by recent contributions…

数值分析 · 数学 2012-11-09 A. -C. Egloffe , A. Gloria , J. -C. Mourrat , T. N. Nguyen

In this paper we establish compactness results of multiscale and very weak multiscale type for sequences bounded in $L^{2}(0,T;H_{0}^{1}(\Omega ))$, fulfilling a certain condition. We apply the results in the homogenization of the parabolic…

偏微分方程分析 · 数学 2019-08-19 Tatiana Danielsson , Pernilla Johnsen

This paper is concerned with the optimal convergence rate in homogenization of higher order parabolic systems with bounded measurable, rapidly oscillating periodic coefficients. The sharp $O(\va)$ convergence rate in the space $L^2(0,T;…

偏微分方程分析 · 数学 2018-04-19 Weisheng Niu , Yao Xu

This is a preliminary version of a book which presents the quantitative homogenization and large-scale regularity theory for elliptic equations in divergence-form. The self-contained presentation gives new and simplified proofs of the core…

偏微分方程分析 · 数学 2019-05-13 Scott Armstrong , Tuomo Kuusi , Jean-Christophe Mourrat

In this paper, we study parabolic equations in divergence form with coefficients that are singular degenerate as some Muckenhoupt weight functions in one spatial variable. Under certain conditions, weighted reverse H\"{o}lder's inequalities…

偏微分方程分析 · 数学 2018-11-16 Hongjie Dong , Tuoc Phan

We are concerned with the homogenization of second-order linear elliptic equations with random coefficient fields. For symmetric coefficient fields with only short-range correlations, quantified through a logarithmic Sobolev inequality for…

偏微分方程分析 · 数学 2016-11-08 Peter Bella , Benjamin Fehrman , Julian Fischer , Felix Otto

We consider an elliptic equation with purely imaginary, highly heterogeneous, and large random potential with a sufficiently rapidly decaying correlation function. We show that its solution is well approximated by the solution to a…

偏微分方程分析 · 数学 2013-11-26 Guillaume Bal , Ningyao Zhang

We study the closure of approximating sequences of some diffusion equations under certain weak convergence. A specific description of the closure under weak $H^1$-convergence is given, which reduces to the original equation when the…

偏微分方程分析 · 数学 2019-01-01 Menglan Liao , Lianzhang Bao , Baisheng Yan

We study the quantitative homogenization of linear second order elliptic equations in non-divergence form with highly oscillating periodic diffusion coefficients and with large drifts, in the so-called ``centered'' setting where…

偏微分方程分析 · 数学 2023-07-10 Wenjia Jing , Yiping Zhang

We establish an optimal, linear rate of convergence for the stochastic homogenization of discrete linear elliptic equations. We consider the model problem of independent and identically distributed coefficients on a discretized unit torus.…

数值分析 · 数学 2019-02-20 Antoine Gloria , Stefan Neukamm , Felix Otto

We consider nonlinear, uniformly elliptic equations with random, highly oscillating coefficients satisfying a finite range of dependence. We prove that homogenization and linearization commute in the sense that the linearized equation…

偏微分方程分析 · 数学 2019-09-26 Scott Armstrong , Sam Ferguson , Tuomo Kuusi

We develop a qualitative homogenisation and spectral theory for elliptic systems of partial differential equations in divergence form with highly contrasting (i.e., non uniformly elliptic) random coefficients. The focus of the paper is on…

偏微分方程分析 · 数学 2025-01-22 Matteo Capoferri , Mikhail Cherdantsev , Igor Velčić

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

This work is devoted to the homogenization of elliptic equations in high-contrast media in the so-called 'double-porosity' resonant regime, for which we solve two open problems of the literature. First, we prove qualitative stochastic…

偏微分方程分析 · 数学 2025-04-07 Elise Bonhomme , Mitia Duerinckx , Antoine Gloria

This paper considers a family of second-order parabolic equations in divergence form with rapidly oscillating and time-dependent periodic coefficients and an interface between two periodic structures. Following a framework initiated by…

偏微分方程分析 · 数学 2023-06-21 Yiping Zhang

This note is a summary of the recent paper [9]. Here, we study the homogenization of elliptic systems with Dirichlet boundary condition, when both the coefficients and the boundary datum are oscillating. In particular, in the paper [9], we…

偏微分方程分析 · 数学 2013-01-31 David Gerard-Varet , Nader Masmoudi

This article studies the homogenization of hyperbolic-parabolic equations in porous media with tiny holes. We assume that the holes are periodically distributed and that the coefficients of the equations are periodic. Using the multi-scale…

偏微分方程分析 · 数学 2017-03-09 Hermann Douanla , Erick Tetsadjio

The paper deals with homogenization and higher order approximations of solutions to nonlocal evolution equations of convolution type whose coefficients are periodic in the spatial variables and random stationary in time. We assume that the…

偏微分方程分析 · 数学 2026-02-11 Marina Kleptsyna , Andrey Piatnitski , Alexandre Popier

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

This paper establishes a complete homogenization theory for the one-dimensional parabolic equation with long-range correlated random potential: \[ \partial_t u_\varepsilon(t,x) = \frac{1}{2} \partial_{xx} u_\varepsilon(t,x) +…

概率论 · 数学 2025-12-10 Atef Lechiheb