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This article addresses linear hyperbolic partial differential equations with non-smooth coefficients and distributional data. Solutions are studied in the framework of Colombeau algebras of generalized functions. Its aim is to prove upper…

偏微分方程分析 · 数学 2015-07-31 Hideo Deguchi , Michael Oberguggenberger

We establish the local H\"older regularity of the spatial gradient of bounded weak solutions $u\colon E_T\to\R^k$ to the non-linear system of parabolic type \begin{equation*} \partial_tu-\Div\Big(…

偏微分方程分析 · 数学 2025-07-22 Verena Bögelein , Frank Duzaar , Ugo Gianazza , Naian Liao , Christoph Scheven

We prove the well posedness of a class of non linear and non local mixed hyperbolic-parabolic systems in bounded domains, with Dirichlet boundary conditions. In view of control problems, stability estimates on the dependence of solutions on…

偏微分方程分析 · 数学 2023-09-13 Rinaldo M. Colombo , Elena Rossi

In this paper we prove existence and regularity of weak solutions for the following system \begin{align*} \begin{cases} &-\mbox{div}\Bigg(\bigg(\|\nabla u\|^{p}_{L^{p}}+\|\nabla v\|^{p}_{L^{p}}\bigg)|\nabla u|^{p-2}\nabla u\Bigg) +…

偏微分方程分析 · 数学 2025-07-29 Luís Henrique de Miranda , Ayana Pinheiro de Castro Santana

This paper proves a local higher integrability result for the spatial gradient of weak solutions to doubly nonlinear parabolic systems. The new feature of the argument is that the intrinsic geometry involves the solution as well as its…

偏微分方程分析 · 数学 2024-06-05 Verena Bögelein , Frank Duzaar , Juha Kinnunen , Christoph Scheven

We aim to study nonnegative, global solutions to a general class of nonlocal parabolic equations with bounded measurable coefficients. First, we prove a Widder-type theorem. Such a result has previously been studied only for certain…

偏微分方程分析 · 数学 2025-05-14 Naian Liao , Marvin Weidner

We obtained the $C^{\a}$ continuity for weak solutions of a class of ultraparabolic equations with measurable coefficients of the form ${\ptl_t u}= \sum_{i,j=1}^{m_0}X_i(a_{ij}(x,t)X_j u)+X_0 u$. The result is proved by simplifying and…

偏微分方程分析 · 数学 2015-05-13 Wendong Wang , Liqun Zhang

We study the dynamics of a degenerate parabolic equation with a variable, generally non-smooth diffusion coefficient, which may vanish at some points or be unbounded. We show the existence of a global branch of nonnegative stationary…

偏微分方程分析 · 数学 2007-05-23 Nikos I. Karachalios , Nikos B. Zographopoulos

The aim of this paper is to prove existence of weak solutions of hyperbolic-parabolic evolution inclusions defined on Lipschitz domains with mixed boundary conditions describing, for instance, damage processes and elasticity with inertia…

偏微分方程分析 · 数学 2016-09-16 Christian Heinemann , Christiane Kraus

A well-known diffuse interface model for incompressible isothermal mixtures of two immiscible fluids consists of the Navier-Stokes system coupled with a convective Cahn-Hilliard equation. In some recent contributions the standard…

偏微分方程分析 · 数学 2013-01-14 Sergio Frigeri , Maurizio Grasselli , Pavel Krejčí

We introduce a new method which resolves the problem of regularity and compactness of entropy solutions for nonlinear degenerate parabolic equations under non-degeneracy conditions on the sphere. In particular, we address a problem of…

偏微分方程分析 · 数学 2023-09-06 Marko Erceg , Darko Mitrović

Via abstract results on maximal monotone operators and compactness property of Nemickii operator, existence of a weak solution for a class of nonlinear parabolic systems of partial differential equations is proven.

偏微分方程分析 · 数学 2007-05-23 Marco Squassina

We consider a convective bulk-surface Cahn--Hilliard system with dynamic boundary conditions and singular potentials. For this model, well-posedness results concerning weak and strong solutions have already been established in the…

偏微分方程分析 · 数学 2025-06-24 Andrea Giorgini , Patrik Knopf , Jonas Stange

It is well known, thanks to Lax-Wendroff theorem, that the local conservation of a numerical scheme for a conservative hyperbolic system is a simple and systematic way to guarantee that, if stable, a scheme will provide a sequence of…

数值分析 · 数学 2023-01-16 Remi Abgrall , P Bacigaluppi , S Tokareva

We show that local weak solutions to parabolic systems of p-Laplace type are H{\"o}lder continuous in time with values in a spatial Lebesgue space and H{\"o}lder continuous on almost every time line. We provide an elementary and…

偏微分方程分析 · 数学 2021-08-13 Simon Bortz , Moritz Egert , Olli Saari

We study second order parabolic equations on Lipschitz domains subject to inhomogeneous Neumann (or, more generally, Robin) boundary conditions. We prove existence and uniqueness of weak solutions and their continuity up to the boundary of…

偏微分方程分析 · 数学 2011-09-01 Robin Nittka

We study a quasilinear parabolic Cauchy problem with a cumulative distribution function on the real line as an initial condition. We call 'probabilistic solution' a weak solution which remains a cumulative distribution function at all…

概率论 · 数学 2014-03-13 Benjamin Jourdain , Julien Reygner

We prove global existence for quasilinear wave equations outside of a wide class of obstacles. The obstacles may contain trapped hyperbolic rays as long as there is local exponential energy decay for the associated linear wave equation.…

偏微分方程分析 · 数学 2009-11-10 Jason Metcalfe , Christopher D. Sogge

The main purpose of this paper is to capture the asymptotic behavior for solutions to a class of nonlinear elliptic and parabolic equations with the anisotropic weights consisting of two power-type weights of different dimensions near the…

偏微分方程分析 · 数学 2024-04-23 Changxing Miao , Zhiwen Zhao

We establish the existence, uniqueness, and $W^{1,2,p}$-regularity of solutions to fully-nonlinear, parabolic obstacle problems when the obstacle is the pointwise supremum of functions in $W^{1,2,p}$ and the nonlinear operator is required…

偏微分方程分析 · 数学 2026-04-08 Théo Durandard , Bruno Strulovici