Quantification of ergodicity in stochastic homogenization: optimal bounds via spectral gap on Glauber dynamics

A Gloria, S Neukamm, F Otto - Inventiones mathematicae, 2015 - Springer
We study quantitatively the effective large-scale behavior of discrete elliptic equations on the
lattice\mathbb Z^ d Z d with random coefficients. The theory of stochastic homogenization …

[HTML][HTML] Representative volume elements for matrix-inclusion composites-a computational study on the effects of an improper treatment of particles intersecting the …

M Schneider, M Josien, F Otto - Journal of the Mechanics and Physics of …, 2022 - Elsevier
We investigate volume-element sampling strategies for the stochastic homogenization of
particle-reinforced composites and show, via computational experiments, that an improper …

Elliptic homogenization from qualitative to quantitative

S Armstrong, T Kuusi - arXiv preprint arXiv:2210.06488, 2022 - arxiv.org
We give a self-contained introduction of the theory of elliptic homogenization for random
coefficient fields, starting from classical qualitative homogenization. Our exposition of the …

The structure of fluctuations in stochastic homogenization

M Duerinckx, A Gloria, F Otto - Communications in Mathematical Physics, 2020 - Springer
Four quantities are fundamental in homogenization of elliptic systems in divergence form
and in its applications: the field and the flux of the solution operator (applied to a general …

Elliptic regularity and quantitative homogenization on percolation clusters

S Armstrong, P Dario - Communications on Pure and Applied …, 2018 - Wiley Online Library
We establish quantitative homogenization, large‐scale regularity, and Liouville results for
the random conductance model on a supercritical (Bernoulli bond) percolation cluster. The …

Bias in the representative volume element method: periodize the ensemble instead of its realizations

N Clozeau, M Josien, F Otto, Q Xu - Foundations of Computational …, 2024 - Springer
We study the representative volume element (RVE) method, which is a method to
approximately infer the effective behavior a hom of a stationary random medium. The latter is …

Stochastic homogenization of nonconvex unbounded integral functionals with convex growth

M Duerinckx, A Gloria - Archive for Rational Mechanics and Analysis, 2016 - Springer
We consider the well-trodden ground of the problem of the homogenization of random
integral functionals. When the integrand has standard growth conditions, the qualitative …

Variational formulas and cocycle solutions for directed polymer and percolation models

N Georgiou, F Rassoul-Agha… - … in Mathematical Physics, 2016 - Springer
We discuss variational formulas for the law of large numbers limits of certain models of
motion in a random medium: namely, the limiting time constant for last-passage percolation …

Quantitative homogenization of the parabolic and elliptic Green's functions on percolation clusters

P Dario, C Gu - 2021 - projecteuclid.org
We study the heat kernel and the Green's function on the infinite supercritical percolation
cluster in dimension d≥ 2 and prove a quantitative homogenization theorem for these …

Efficient methods for the estimation of homogenized coefficients

JC Mourrat - Foundations of Computational Mathematics, 2019 - Springer
The main goal of this paper is to define and study new methods for the computation of
effective coefficients in the homogenization of divergence-form operators with random …