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We consider the large-scale regularity of solutions to second-order linear elliptic equations with random coefficient fields. In contrast to previous works on regularity theory for random elliptic operators, our interest is in the…

Analysis of PDEs · Mathematics 2016-10-26 Julian Fischer , Claudia Raithel

We study the behavior of second-order degenerate elliptic systems in divergence form with random coefficients which are stationary and ergodic. Assuming moment bounds like Chiarini and Deuschel [Arxiv preprint 1410.4483, 2014] on the…

Analysis of PDEs · Mathematics 2016-05-04 Peter Bella , Benjamin Fehrman , Felix Otto

In this note we derive large-scale regularity properties of solutions to second-order linear elliptic equations with random coefficients on the half- space with homogeneous Neumann boundary data; it is a companion to arXiv:1604.02717 in…

Analysis of PDEs · Mathematics 2017-03-14 Claudia Raithel

We establish quantitative homogenization, large-scale regularity and Liouville results for the random conductance model on a supercritical (Bernoulli bond) percolation cluster. The results are also new in the case that the conductivity is…

Probability · Mathematics 2017-02-06 Scott Armstrong , Paul Dario

We prove large-scale $C^\infty$ regularity for solutions of nonlinear elliptic equations with random coefficients, thereby obtaining a version of the statement of Hilbert's 19th problem in the context of homogenization. The analysis…

Analysis of PDEs · Mathematics 2020-05-20 Scott Armstrong , Samuel J. Ferguson , Tuomo Kuusi

We consider degenerate elliptic equations of second order in divergence form with a symmetric random coefficient field $a$. Extending the work of the first author, Fehrman, and Otto [Ann. Appl. Probab. 28 (2018), no. 3, 1379-1422], who…

Analysis of PDEs · Mathematics 2023-12-06 Peter Bella , Michael Kniely

In this contribution we are interested in the quantitative homogenization properties of linear elliptic equations with homogeneous Dirichlet boundary data in polygonal domains with corners. To begin our study of this situation, we consider…

Analysis of PDEs · Mathematics 2022-01-26 Marc Josien , Claudia Raithel , Mathias Schäffner

Since the seminal results by Avellaneda \& Lin it is known that elliptic operators with periodic coefficients enjoy the same regularity theory as the Laplacian on large scales. In a recent inspiring work, Armstrong \& Smart proved…

Analysis of PDEs · Mathematics 2019-10-10 Antoine Gloria , Stefan Neukamm , Felix Otto

We introduce a new method for obtaining quantitative results in stochastic homogenization for linear elliptic equations in divergence form. Unlike previous works on the topic, our method does not use concentration inequalities (such as…

Analysis of PDEs · Mathematics 2016-06-22 Scott Armstrong , Tuomo Kuusi , Jean-Christophe Mourrat

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…

Analysis of PDEs · Mathematics 2019-05-13 Scott Armstrong , Tuomo Kuusi , Jean-Christophe Mourrat

This paper concentrates on the quantitative homogenization of higher-order elliptic systems with almost-periodic coefficients in bounded Lipschitz domains. For coefficients which are almost-periodic in the sense of H. Weyl, we establish…

Analysis of PDEs · Mathematics 2020-01-30 Yao Xu , Weisheng Niu

We prove that a solution of an elliptic operator with periodic coefficients behaves on large scales like an analytic function, in the sense of approximation by polynomials with periodic corrections. Equivalently, the constants in the…

Analysis of PDEs · Mathematics 2020-05-05 Scott Armstrong , Tuomo Kuusi , Charles Smart

We are concerned with some extensions of the classical Liouville theorem for bounded harmonic functions to solutions of more general equations. We deal with entire solutions of periodic and almost periodic parabolic equations including the…

Analysis of PDEs · Mathematics 2015-05-13 Luca Rossi

The objective of this paper is to establish a connection between the problem of optimal regularity among solutions to elliptic PDEs with measurable coefficients and the Liouville property at infinity. Initially, we address the…

Analysis of PDEs · Mathematics 2024-03-14 Giorgio Tortone

We develop a quantitative theory of stochastic homogenization for linear, uniformly parabolic equations with coefficients depending on space and time. Inspired by recent works in the elliptic setting, our analysis is focused on certain…

Analysis of PDEs · Mathematics 2018-06-13 Scott Armstrong , Alexandre Bordas , Jean-Christophe Mourrat

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…

Analysis of PDEs · Mathematics 2016-11-08 Peter Bella , Benjamin Fehrman , Julian Fischer , Felix Otto

In this paper, we establish the following Liouville theorem for fractional \emph{p}-harmonic functions. {\em Assume that $u$ is a bounded solution of $$(-\lap)^s_p u(x) = 0, \;\; x \in \mathbb{R}^n,$$ with $0<s<1$ and $p \geq 2$. Then $u$…

Analysis of PDEs · Mathematics 2019-05-27 Wenxiong Chen , Leyun Wu

In this article, we will consider second order uniformly elliptic operators of divergence form defined on R^n with measurable coefficients. Mainly, we will give estimates on the dimension of space of solutions that grow at most polynomially…

Analysis of PDEs · Mathematics 2016-09-07 Peter Li , Jiaping Wang

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…

Analysis of PDEs · Mathematics 2022-02-09 Antoine Gloria , Stefan Neukamm , Felix Otto

In this paper, we consider the elliptic operators $\mathcal{L}_\varepsilon = -\nabla\cdot (A(X/\varepsilon) \nabla )$ with periodic coefficients in a bounded domain $\Omega$ without any local smoothness assumption on $A = A(Y)$, where…

Analysis of PDEs · Mathematics 2026-03-24 Zhongwei Shen , Jinping Zhuge
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