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This paper was devoted to study the quantitative homogenization problems for nonlinear elliptic operators in perforated domains. We obtained a sharp error estimate $O(\varepsilon)$ when the problem was anchored in the reference domain…

偏微分方程分析 · 数学 2020-08-10 Li Wang , Qiang Xu , Peihao Zhao

This article is about the quantitative homogenization theory of linear elliptic equations in divergence form with random coefficients. We derive gradient estimates on the homogenization error, i.e. on the difference between the actual…

偏微分方程分析 · 数学 2020-05-19 Marc Josien , Felix Otto

The main purpose of this work is to study uniform regularity estimates for a family of elliptic operators $\{\mathcal{L}_\varepsilon, \varepsilon>0\}$, arising in the theory of homogenization, with rapidly oscillating periodic coefficients.…

偏微分方程分析 · 数学 2010-11-01 Carlos E. Kenig , Fanghua Lin , Zhongwei Shen

In this paper, we are interested in the periodic homogenization of quasilinear elliptic equations. We obtain error estimates $O(\varepsilon^{1/2})$ for a $C^{1,1}$ domain, and $O(\varepsilon^\sigma)$ for a Lipschitz domain, in which…

偏微分方程分析 · 数学 2018-07-31 Li Wang , Qiang Xu , Peihao Zhao

This paper investigates quantitative estimates in the homogenization of second-order elliptic systems with periodic coefficients that oscillate on multiple separated scales. We establish large-scale interior and boundary Lipschitz estimates…

偏微分方程分析 · 数学 2019-09-23 Weisheng Niu , Zhongwei Shen , Yao Xu

For a family of systems of linear elasticity with rapidly oscillating periodic coefficients, we establish sharp boundary estimates with either Dirichlet or Neumann conditions, uniform down to the microscopic scale, without smoothness…

偏微分方程分析 · 数学 2015-07-23 Zhongwei Shen

Concerned with elliptic operators with stationary random coefficients governed by linear or nonlinear mixing conditions and bounded (or unbounded) $C^1$ domains, this paper mainly studies (weighted) annealed Calder\'on-Zygmund estimates,…

偏微分方程分析 · 数学 2024-05-30 Li Wang , Qiang Xu

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 the corrector equation from the stochastic homogenization of uniformly elliptic finite-difference equations with random, possibly non-symmetric coefficients. Under the assumption that the coefficients are stationary and ergodic…

偏微分方程分析 · 数学 2016-07-14 Jonathan Ben-Artzi , Daniel Marahrens , Stefan Neukamm

This article mainly proves the existence of stationary correctors under space-time spectral gap conditions, which exhibit different properties from those of elliptic operator correctors. Additionally, new flux correctors and their…

偏微分方程分析 · 数学 2026-05-19 Jun Geng , Qiang Xu

This paper is about the homogenization of linear elliptic operators in divergence form with stationary random coefficients that have only slowly decaying correlations. It deduces optimal estimates of the homogenization error from optimal…

偏微分方程分析 · 数学 2022-02-09 Antoine Gloria , Stefan Neukamm , Felix Otto

This paper focuses on the uniform boundary estimates in homogenization of a family of higher order elliptic operators $\mathcal{L}_\epsilon$, with rapidly oscillating periodic coefficients. We derive uniform boundary $C^{m-1,\lambda}…

偏微分方程分析 · 数学 2017-09-14 Weisheng Niu , Yao Xu

In terms of layer potential methods, this paper is devoted to study the $L^2$ boundary value problems for nonhomogeneous elliptic operators with rapidly oscillating coefficients in a periodic setting. Under a low regularity assumption on…

偏微分方程分析 · 数学 2018-01-30 Qiang Xu , Peihao Zhao , Shulin Zhou

In this paper, we extend the nontangential maximal function estimate obtained by C. Kenig, F. Lin and Z. Shen in \cite{KFS1} to the nonhomogeneous elliptic operators with rapidly oscillating periodic coefficients. The result relies on the…

偏微分方程分析 · 数学 2018-06-08 Qiang Xu , Shulin Zhou

In the present work, we established almost-sharp error estimates for linear elasticity systems in periodically perforated domains. The first result was $L^{\frac{2d}{d-1-\tau}}$-error estimates $O\big(\varepsilon^{1-\frac{\tau}{2}}\big)$…

偏微分方程分析 · 数学 2020-06-01 Li Wang , Qiang Xu , Peihao Zhao

This paper is concerned with the quantitative homogenization of $2m$-order elliptic systems with bounded measurable, rapidly oscillating periodic coefficients. We establish the sharp $O(\varepsilon)$ convergence rate in $W^{m-1, p_0}$ with…

偏微分方程分析 · 数学 2017-06-08 Weisheng Niu , Zhongwei Shen , Yao Xu

Corrector estimates constitute a key ingredient in the derivation of optimal convergence rates via two-scale expansion techniques in homogenization theory of random uniformly elliptic equations. The present work follows up - in terms of…

偏微分方程分析 · 数学 2020-12-10 Sebastian Hensel

This paper concerns with a family of elliptic systems of linear elasticity with rapidly oscillating periodic coefficients, arising in the theory of homogenization. We establish uniform optimal regularity estimates for solutions of Neumann…

偏微分方程分析 · 数学 2017-03-08 Jun Geng , Zhongwei Shen , Liang Song

This paper is devoted to the proof of Lipschitz regularity, down to the microscopic scale, for solutions of an elliptic system with highly oscillating coefficients, over a highly oscillating Lipschitz boundary. The originality of this…

偏微分方程分析 · 数学 2015-04-08 Carlos Kenig , Christophe Prange

Homogenization of a scalar elliptic equation in a bounded domain with Neuman boundary condition is studied. Coefficients of the operator are oscillating over two different groups of variables with different small periods $\varepsilon$ and…

偏微分方程分析 · 数学 2015-12-22 Svetlana Pastukhova , Roman Tikhomirov
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