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We study boundary integral formulations for an interior/exterior initial boundary value problem arising from the thermo-elasto-dynamic equations in a homogeneous and isotropic domain. The time dependence is handled, based on Lubich's…

Numerical Analysis · Mathematics 2020-10-13 George C. Hsiao , Tonatiuh Sánchez-Vizuet

Motivated by problems arising in geometric flows, we prove several regularity results for systems of local and nonlocal equations, adapting to the parabolic case a neat argument due to Caffarelli. The geometric motivation of this work comes…

Analysis of PDEs · Mathematics 2020-05-11 Agnid Banerjee , Gonzalo Dávila , Yannick Sire

Let $\Omega$ be a Lipschitz domain in $\mathbb R^n$ $n\geq 2,$ and $L=\mbox{div} (A\nabla\cdot)$ be a second order elliptic operator in divergence form. We establish solvability of the Dirichlet regularity problem with boundary data in…

Analysis of PDEs · Mathematics 2015-11-03 Martin Dindoš , Jill Pipher , David Rule

We establish the existence and uniqueness, in bounded as well as unbounded Lipschitz type cylinders of the forms $U_X\times V_{Y,t}$ and $\Omega\times \mathbb R^{m}\times \mathbb R$, of weak solutions to Cauchy-Dirichlet problems for the…

Analysis of PDEs · Mathematics 2021-12-03 M. Litsgård , K. Nyström

Consider the nonlinear parabolic equation in the form $$ u_t-{\rm div} \mathbf{a}(D u,x,t)={\rm div}\,(|F|^{p-2}F) \quad \text{in} \quad \Omega\times(0,T), $$ where $T>0$ and $\Omega$ is a Reifenberg domain. We suppose that the nonlinearity…

Analysis of PDEs · Mathematics 2017-03-20 The Anh Bui , Xuan Thinh Duong

We consider the Dirichlet problem for positive solutions of the equation $-\Delta_p (u) = f(u)$ in a convex, bounded, smooth domain $\Omega \subset\R^N$, with $f$ locally Lipschitz continuous. \par We provide sufficient conditions…

Analysis of PDEs · Mathematics 2017-09-19 Lucio Damascelli , Rosa Pardo

For a family of second-order parabolic systems with bounded measurable, rapidly oscillating and time-dependent periodic coefficients, we investigate the sharp convergence rates of weak solutions in $L^2$. Both initial-Dirichlet and…

Analysis of PDEs · Mathematics 2016-04-25 Jun Geng , Zhongwei Shen

We study existence and regularity properties of solutions to the singular $p$-Laplacean parabolic system in a bounded domain $\Omega$. The main purpose is to prove global $L^r(\varepsilon,T;L^q(\Omega))$, $\varepsilon\geq0$, integrability…

Analysis of PDEs · Mathematics 2012-09-06 Francesca Crispo , Paolo Maremonti

In the present paper, we generalize the theory of quantitative homogenization for second-order elliptic systems with rapidly oscillating coefficients in $APW^2(\mathbb{R}^d)$, which is the space of almost-periodic functions in the sense of…

Analysis of PDEs · Mathematics 2017-02-14 Jinping Zhuge

We prove the existence of a complete locally Lipschitz continuous hypersurface in weak sense with prescribed Weingarten curvature and asymptotic boundary at infinity in hyperbolic space under certain assumptions.

Differential Geometry · Mathematics 2021-10-22 Zhenan Sui , Wei Sun

This is a survey of results mostly relating elliptic equations and systems of arbitrary even order with rough coefficients in Lipschitz graph domains. Asymptotic properties of solutions at a point of a Lipschitz boundary are also discussed.

Analysis of PDEs · Mathematics 2010-10-05 Vladimir Maz'ya , Tatyana Shaposhnikova

A pointwise bound for local weak solutions to the p-Laplace system is established in terms of data on the right-hand side in divergence form. The relevant bound involves a Havin-Maz'ya- Wulff potential of the datum, and is a counterpart for…

Analysis of PDEs · Mathematics 2017-11-01 Andrea Cianchi , Sebastian Schwarzacher

We study the boundary behavior of non-negative solutions to a class of degenerate/singular parabolic equations, whose prototype is the parabolic $p$-Laplacian. Assuming that such solutions continuously vanish on some distinguished part of…

Analysis of PDEs · Mathematics 2016-03-03 Benny Avelin , Ugo Gianazza , Sandro Salsa

While inverse estimates in the context of radial basis function approximation on boundary-free domains have been known for at least ten years, such theorems for the more important and difficult setting of bounded domains have been notably…

Numerical Analysis · Mathematics 2016-11-01 Thomas Hangelbroek , Francis J. Narcowich , Christian Rieger , Joseph D. Ward

Let $n\ge2$ and $\Omega$ be a bounded Lipschitz domain in $\mathbb{R}^n$. In this article, the authors investigate global (weighted) estimates for the gradient of solutions to Robin boundary value problems of second order elliptic equations…

Analysis of PDEs · Mathematics 2020-03-18 Sibei Yang , Dachun Yang , Wen Yuan

Consider positive solutions to second order elliptic equations with measurable coefficients in a bounded domain, which vanish on a portion of the boundary. We give simple necessary and sufficient geometric conditions on the domain, which…

Analysis of PDEs · Mathematics 2008-10-03 Mikhail V. Safonov

We study the $\bar\partial$ equation subject to various boundary value conditions on bounded simply connected Lipschitz domains $D\subset\mathbb C$: for the Dirichlet problem with datum in $L^p(bD, \sigma)$, this is simply a restatement of…

Complex Variables · Mathematics 2024-02-13 William Gryc , Loredana Lanzani , Jue Xiong , Yuan Zhang

In this paper we study the $H^2$ global regularity for solutions of the $p(x)-$Laplacian in two dimensional convex domains with Dirichlet boundary conditions. Here $p:\Omega \to [p_1,\infty)$ with $p\in Lip(\bar{\Omega})$ and $p_1>1$.

Analysis of PDEs · Mathematics 2013-11-15 Leandro M. Del Pezzo , Sandra Martinez

The main purpose of this paper is to address some questions concerning boundary value problems related to the Laplacian and bi-Laplacian operators, set in the framework of classical $H^s$ Sobolev spaces on a bounded Lipschitz domain of R^N.…

Analysis of PDEs · Mathematics 2023-06-06 Cherif Amrouche , Mohand Moussaoui

This paper contains two results on the $L^p$ regularity problem on Lipschitz domains. For second order elliptic systems and $1<p<\infty$, we prove that the solvability of the $L^p$ regularity problem is equivalent to that of the…

Analysis of PDEs · Mathematics 2009-05-01 Joel Kilty , Zhongwei Shen