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This paper is concerned with quantitative homogenization of second-order parabolic systems with periodic coefficients varying rapidly in space and time, in different scales. We obtain large-scale interior and boundary Lipschitz estimates as…

偏微分方程分析 · 数学 2020-01-08 Jun Geng , Zhongwei Shen

We study the Darcy boundary value problem with log-normal permeability field. We adopt a perturbation approach, expanding the solution in Taylor series around the nominal value of the coefficient, and approximating the expected value of the…

数值分析 · 数学 2020-05-15 Francesca Bonizzoni , Fabio Nobile

This study investigates the $L^1_{\operatorname{loc}}$ compactness of velocity averages of sequences of solutions $\{u_n\}$ for a class of kinetic equations. The equations are examined within both deterministic and stochastic heterogeneous…

偏微分方程分析 · 数学 2026-04-21 Marko Erceg , Kenneth H. Karlsen , Darko Mitrović

We investigate the stability with respect to homogenization of classes of integrals arising in the control-theoretic interpretation of some Hamilton-Jacobi equations. The prototypical case is the homogenization of energies with a Lagrangian…

偏微分方程分析 · 数学 2024-11-13 Andrea Braides , Gianni Dal Maso , Claude Le Bris

We are concerned with the barotropic compressible Navier-Stokes equations on the real line. Our primary goal is to establish the global well-posedness in a critical regularity framework in the case where the initial data are small…

偏微分方程分析 · 数学 2026-03-17 Raphaël Danchin

This study investigates the regularity of kinetic equations with spatial heterogeneity. Recent progress has shown that velocity averages of weak solutions $h$ in $L^p$ ($p>1$) are strongly $L^1_{\text{loc}}$ compact under the natural…

偏微分方程分析 · 数学 2026-04-22 Marko Erceg , Kenneth H. Karlsen , Darko Mitrović

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

In this note, we consider the homogenization of the compressible Navier-Stokes equations in a periodically perforated domain in $\mathbb{R}^3$. Assuming that the particle size scales like $\varepsilon^3$, where $\varepsilon>0$ is their…

偏微分方程分析 · 数学 2022-11-28 Peter Bella , Florian Oschmann

The aim of this paper is to propose a systematic way to obtain convergent finite element schemes for the Darcy-Stokes flow problem by combining well-known mixed finite elements that are separately convergent for Darcy and Stokes problems.…

数值分析 · 数学 2012-03-22 Antonio Márquez , Salim Meddahi , Francisco-Javier Sayas

In this paper we establish new quantitative stability estimates with respect to domain perturbations for all the eigenvalues of both the Neumann and the Dirichlet Laplacian. Our main results follow from an abstract lemma stating that it is…

偏微分方程分析 · 数学 2012-09-18 Antoine Lemenant , Emmanouil Milakis , Laura V. Spinolo

In this paper we prove convergence results for homogenization problem for solutions of partial differential system with rapidly oscillating Dirichlet data. Our method is based on analysis of oscillatory integrals. In the uniformly convex…

偏微分方程分析 · 数学 2013-10-22 Hayk Aleksanyan , Henrik Shahgholian , Per Sjölin

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 Strichartz estimates with a loss of derivatives for the Schr\"odinger equation on polygonal domains with either Dirichlet or Neumann homogeneous boundary conditions. Using a standard doubling procedure, estimates the on polygon…

偏微分方程分析 · 数学 2012-03-05 Matthew D. Blair , G. Austin Ford , Sebastian Herr , Jeremy L. Marzuola

This work concerns about stochastic Burgers type equations with reflection. First of all, by means of the equicontinuous uniform Laplace principle, we prove the Freidlin-Wentzell uniform large deviation principle for these equations…

概率论 · 数学 2025-06-19 Huijie Qiao

For $p \in (1,N)$ and $\Omega \subseteq \mathbb{R}^N$ open, the Beppo-Levi space $\mathcal{D}^{1,p}_0(\Omega)$ is the completion of $C_c^{\infty}(\Omega)$ with respect to the norm $\left( \int_{\Omega}|\nabla u|^p \right)^ \frac{1}{p}.$…

偏微分方程分析 · 数学 2021-02-11 T. V. Anoop , Ujjal Das

It is well known that the Euler vortex patch in $\mathbb{R}^{2}$ will remain regular if it is regular enough initially. In bounded domains, the regularity theory for patch solutions is less complete. In this paper, we study Euler vortex…

偏微分方程分析 · 数学 2018-06-21 Alexander Kiselev , Chao Li

This work is concerned with the equation $ \partial_t \rho = \Delta_x \rho^m $, $ m > 1 $, known as the porous medium equation. It shows stability of the pressure of solutions close to flat travelling wave fronts in the homogeneous…

偏微分方程分析 · 数学 2015-03-03 Clemens Kienzler

We consider Stokes systems with measurable coefficients and Lions-type boundary conditions. We show that, in contrast to the Dirichlet boundary conditions, local boundary mixed-norm $L_{s,q}$-estimates hold for the spatial second-order…

偏微分方程分析 · 数学 2022-01-21 Hongjie Dong , Doyoon Kim , Tuoc Phan

We develop a quantitative theory of stochastic homogenization in the more general framework of differential forms. Inspired by recent progress in the uniformly elliptic setting, the analysis relies on the study of certain subadditive…

偏微分方程分析 · 数学 2020-12-29 Paul Dario

We investigate quantitative estimates in homogenization of the locally periodic parabolic operator with multiscales $$ \partial_t- \text{div} (A(x,t,x/\varepsilon,t/\kappa^2) \nabla ),\qquad \varepsilon>0,\, \kappa>0. $$ Under proper…

偏微分方程分析 · 数学 2021-03-03 Jun Geng , Weisheng Niu