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The concept of reiterated $\Sigma$-convergence (and more generally of multiscale $\Sigma$-convergence) is extended to framework of Orlicz-Sobolev spaces, in order to deals with homogenization of multiscales problems in general deterministic…

Analysis of PDEs · Mathematics 2025-07-30 J. Dongho , Joel Fotso Tachago , H. Nnang , T. F. A. Tchinda

We develop the stochastic two-scale convergence method in the framework of Orlicz-Sobolev spaces, in order to deal with the homogenization of coupled stochastic-periodic problems in such spaces. One fundamental in this topic is the…

Analysis of PDEs · Mathematics 2025-10-17 Dongho Joseph , Fotso Tachago Joel , Tchinda Takougoum Franck

In this paper, we study the stochastic homogenization for a family of integral functionals with convex and nonstandard growth integrands defined on Orlicz-Sobolev's spaces. One fundamental in this topic is to extend the classical…

Analysis of PDEs · Mathematics 2025-07-15 Joseph Dongho , Joel Fotso Tachago , Franck Tchinda

In this paper, we show that the concept of sigma-convergence associated to stochastic processes can tackle the homogenization of stochastic partial differential equations. In this regard, the homogenization problem for a stochastic…

Analysis of PDEs · Mathematics 2014-08-12 Paul André Razafimandimby , Jean Louis Woukeng

Motivated by the fact that in nature almost all phenomena behave randomly in some scales and deterministically in some other scales, we build up a framework suitable to tackle both deterministic and stochastic homogenization problems…

Analysis of PDEs · Mathematics 2012-05-01 Mamadou Sango , Jean Louis Woukeng

We consider the homogenization of random integral functionals which are possibly unbounded, that is, the domain of the integrand is not the whole space and may depend on the space-variable. In the vectorial case, we develop a complete…

Optimization and Control · Mathematics 2026-04-13 Davide Aruta , Francesca Prinari , Francesco Solombrino

In this paper we are interested in the application of ergodic theory in integral functionals defined in generalizes Sobolev-Orlicz spaces. We provide examples of inhomogeneous, random media based on continuum percolation models that have…

Analysis of PDEs · Mathematics 2011-08-02 Dimitris Kontogiannis

Multiscale periodic homogenization is extended to an Orlicz-Sobolev setting. It is shown by the reiteraded periodic two-scale convergence method that the sequence of minimizers of a class of highly oscillatory minimizations problems…

Optimization and Control · Mathematics 2020-02-25 Joel Fotso Tachago , Hubert Nnang , Elvira Zappale

We obtain a compactness result for $\Gamma$-convergence of integral functionals defined on $\mathcal{A}$-free vector fields. This is used to study homogenization problems for these functionals without periodicity assumptions. More…

Analysis of PDEs · Mathematics 2026-03-10 Gianni Dal Maso , Rita Ferreira , Irene Fonseca

We prove stochastic homogenization for integral functionals defined on Sobolev spaces, where the stationary, ergodic integrand satisfies a degenerate growth condition of the form \begin{equation*} c|\xi A(\omega,x)|^p\leq…

Analysis of PDEs · Mathematics 2021-10-26 Matthias Ruf , Thomas Ruf

We extend the concept of two-scale convergence on forms in Orlicz-Sobolev's spaces and we describe the homogenization for a family of integral functionals with convex and nonstandard growth integrands defined on the tangent bundle of a…

Analysis of PDEs · Mathematics 2023-12-27 Franck Arnold Tchinda , Joel Fotso Tachago , Joseph Dongho

We study the stochastic homogenization of the system -div \sigma^\epsilon = f^\epsilon \sigma^\epsilon \in \partial \phi^\epsilon (\nabla u^\epsilon), where (\phi^\epsilon) is a sequence of convex stationary random fields, with p-growth. We…

Analysis of PDEs · Mathematics 2011-07-13 Marco Veneroni

We study the homogenization of obstacle problems in Orlicz-Sobolev spaces for a wide class of monotone operators (possibly degenerate or singular) of the $p(\cdot)$-Laplacian type. Our approach is based on the Lewy-Stampacchia inequalities,…

Analysis of PDEs · Mathematics 2018-06-26 Diego Marcon , José Francisco Rodrigues , Rafayel Teymurazyan

In this paper, we are interested in reiterated periodic homogenization for a family of parabolic problems with nonstandard growth monotone operators leading to Orlicz spaces. The aim of this work is the determination of the global…

Analysis of PDEs · Mathematics 2024-06-03 Franck Tchinda , Joel Fotso Tachago , Joseph Dongho

This paper aims to extend to Orlicz-Sobolev spaces some results of integral representation for the simultaneous homogenization and dimensional reduction of integral energies defined on fields taking values on a differentiable manifold.…

Analysis of PDEs · Mathematics 2026-04-16 Joseph Dongho , Joel Fotso Tachago , Franck Tchinda , Elvira Zappale

In this paper we study the stochastic homogenisation of free-discontinuity functionals. Assuming stationarity for the random volume and surface integrands, we prove the existence of a homogenised random free-discontinuity functional, which…

Analysis of PDEs · Mathematics 2017-12-21 Filippo Cagnetti , Gianni Dal Maso , Lucia Scardia , Caterina Ida Zeppieri

We study stochastic homogenization for convex integral functionals $$u\mapsto \int_D W(\omega,\tfrac{x}\varepsilon,\nabla u)\,\mathrm{d}x,\quad\mbox{where}\quad u:D\subset \mathbb{R}^d\to\mathbb{R}^m,$$ defined on Sobolev spaces. Assuming…

Analysis of PDEs · Mathematics 2023-03-28 Matthias Ruf , Mathias Schäffner

We prove the $\Gamma$-convergence of sequences of differentially constrained, random integral functionals of the form \begin{equation*} \int_{U} f\Big(\omega, x/\varepsilon, \mathbb{A} u\Big) \mathrm{d} x \end{equation*} for the class of…

Analysis of PDEs · Mathematics 2023-08-08 Piotr Wozniak

This article establishes a stochastic homogenization result for the first order Hamilton-Jacobi equation on a Riemannian manifold $M$, in the context of a stationary ergodic random environment. The setting involves a finitely generated…

Analysis of PDEs · Mathematics 2025-10-14 Marco Pozza , Alfonso Sorrentino

Majorization-minimization schemes are a broad class of iterative methods targeting general optimization problems, including nonconvex, nonsmooth and stochastic. These algorithms minimize successively a sequence of upper bounds of the…

Optimization and Control · Mathematics 2024-01-11 Daniela Lupu , Ion Necoara
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