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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

We study the rate of convergence for (variational) eigenvalues of several non-linear problems involving oscillating weights and subject to different kinds of boundary conditions in bounded domains.

偏微分方程分析 · 数学 2012-08-29 Julian Fernandez Bonder , Juan P. Pinasco , Ariel M. Salort

This paper deals with the homogenization of a mixed boundary value problem for the Laplace operator in a domain with locally periodic oscillating boundary. The Neumann condition is prescribed on the oscillating part of the boundary, and the…

偏微分方程分析 · 数学 2021-02-22 Srinivasan Aiyappan , Klas Pettersson

This paper deals with the \emph{integral} version of the Dirichlet homogeneous fractional Laplace equation. For this problem weighted and fractional Sobolev a priori estimates are provided in terms of the H\"older regularity of the data. By…

数值分析 · 数学 2017-01-11 Gabriel Acosta , Juan Pablo Borthagaray

In this paper, for a family of second-order parabolic system or equation with rapidly oscillating and time-dependent periodic coefficients over rough boundaries, we obtain the large-scale boundary estimates, by a quantitative approach. The…

偏微分方程分析 · 数学 2024-11-14 Pengxiu Yu , Yiping Zhang

In a planar infinite strip with a fast oscillating boundary we consider an elliptic operator assuming that both the period and the amplitude of the oscillations are small. On the oscillating boundary we impose Dirichlet, Neumann or Robin…

偏微分方程分析 · 数学 2014-03-25 Denis Borisov , Giuseppe Cardone , Luisa Faella , Carmen Perugia

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

We consider the Dirichlet problem for positively homogeneous, degenerate elliptic, concave (or convex) Hessian equations. Under natural and necessary conditions on the geometry of the domain, with the $C^{1,1}$ boundary data, we establish…

偏微分方程分析 · 数学 2013-11-26 Wei Zhou

We prove a quantitative, large-scale doubling inequality and large-scale three-ellipsoid inequality for solutions of uniformly elliptic equations with periodic coefficients. These estimates are optimal in terms of the minimal length scale…

偏微分方程分析 · 数学 2021-08-02 Scott Armstrong , Tuomo Kuusi , Charles Smart

We investigate the asymptotics of boundary layers in periodic homogenization. The analysis is focused on a Stokes system with periodic coefficients and periodic Dirichlet data posed in the half-space $\{y\in \mathbb{R}^d: y\cdot n -s>0\}$.…

偏微分方程分析 · 数学 2024-11-25 Moustapha Agne

We prove decay estimates in the interior for solutions to elliptic equations in divergence form with Lipschitz continuous coefficients. The estimates explicitly depend on the distance from the boundary and on suitable notions of frequency…

偏微分方程分析 · 数学 2019-07-12 Michele Di Cristo , Luca Rondi

We consider a family of second-order parabolic systems in divergence form with rapidly oscillating and time-dependent coefficients, arising in the theory of homogenization. We obtain uniform interior $W^{1,p}$, H\"older, and Lipschitz…

偏微分方程分析 · 数学 2013-08-28 Jun Geng , Zhongwei Shen

We prove quantitative decay estimates for the boundary layer corrector in stochastic homogenization in the case of a half-space boundary. Our estimates are of optimal order and show that the gradient of the boundary layer corrector features…

偏微分方程分析 · 数学 2026-04-01 Peter Bella , Julian Fischer , Marc Josien , Claudia Raithel

In this paper we prove Holder regularity of the gradient for solutions of Dirichlet problem associate to degenerate elliptic equations, extending the recent result of Imbert and Silvestre. Indeed we obtain regularity up to the boundary and…

偏微分方程分析 · 数学 2012-08-03 I. Birindelli , F. Demengel

We study and characterize the optimal rates of convergence in periodic homogenization of linear elliptic equations in non-divergence form. We obtain that the optimal rate of convergence is either $O(\varepsilon)$ or $O(\varepsilon^2)$…

偏微分方程分析 · 数学 2022-01-07 Xiaoqin Guo , Hung V. Tran , Yifeng Yu

This paper studies quantitative homogenization of elliptic equations with random, uniformly elliptic coefficients that vanish in a union of random holes. Assuming an upper bound on the size of the holes and a separation condition between…

偏微分方程分析 · 数学 2025-06-03 Peter Bella , Matteo Capoferri , Mikhail Cherdantsev , Igor Velčić

For a class of linear elliptic equations of general type with rapidly oscillating coefficients, we use the sigma-convergence method to prove the homogenization result and a corrector-type result. In the case of asymptotic periodic…

偏微分方程分析 · 数学 2019-11-26 Renata Bunoiu , Giuseppe Cardone , Willi Jäger , Jean Louis Woukeng

We show that optimal $L^2$-convergence in the finite element method on quasi-uniform meshes can be achieved if, for some $s_0 > 1/2$, the boundary value problem has the mapping property $H^{-1+s} \rightarrow H^{1+s}$ for $s \in [0,s_0]$.…

数值分析 · 数学 2015-04-29 T. Horger , J. M. Melenk , B. Wohlmuth

This paper studies a new gradient regularity in Lorentz spaces for solutions to a class of quasilinear divergence form elliptic equations with nonhomogeneous Dirichlet boundary conditions: \begin{align*} \begin{cases} div(A(x,\nabla u)) &=…

偏微分方程分析 · 数学 2019-05-16 Minh-Phuong Tran , T. -N. Nguyen