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The goal of this paper is to study some possibly degenerate elliptic equation in a bounded domain with a nonlinear boundary condition involving measure data. We investigate two types of problems: the first one deals with the laplacian in a…

Analysis of PDEs · Mathematics 2010-03-01 Thierry Gallouët , Yannick Sire

In this article we study an elliptic problem with degenerate coercivity. We will show that the presence of some lower order terms has a regularizing effect on the solutions.

Analysis of PDEs · Mathematics 2010-05-20 Gisella Croce

We present recent advances in the regularity theory for weak solutions to some classes of elliptic and parabolic equations with strongly singular or degenerate structure. The equations under consideration satisfy standard $p$-growth and…

Analysis of PDEs · Mathematics 2026-02-27 Pasquale Ambrosio

Sobolev-type regularity results are proved for solutions to a class of second order elliptic equations with a singular or degenerate weight, under non-homogeneous Neumann conditions. As an application a Pohozaev-type identity for weak…

Analysis of PDEs · Mathematics 2022-01-11 Veronica Felli , Giovanni Siclari

We prove a Meyers type regularity estimate for approximate solutions of second order elliptic equations obtained by Galerkin methods. The proofs rely on interpolation results for Sobolev spaces on graphs. Estimates for second order elliptic…

Analysis of PDEs · Mathematics 2012-10-10 Nadine Badr , Emmanuel Russ

We establish Schauder a priori estimates and regularity for solutions to a class of boundary-degenerate elliptic linear second-order partial differential equations. Furthermore, given a smooth source function, we prove regularity of…

Analysis of PDEs · Mathematics 2016-04-08 Paul M. N. Feehan , Camelia Pop

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

The Dirichlet problem in arbitrary domains for a wide class of anisotropic elliptic equations of the second order with variable exponent nonlinearities and the right-hand side as a measure is considered. The existence of an entropy solution…

Analysis of PDEs · Mathematics 2018-08-30 L. M. Kozhevnikova

In this paper, we study the regularity of solutions to uniformly degenerate elliptic equations in bounded domains under the condition that the characteristic polynomials have varying characteristic exponents.

Analysis of PDEs · Mathematics 2024-11-27 Qing Han , Jiongduo Xie

Qualitative properties of a second order elliptic equation from the anisotropic elasticity are investigated. Some explicit solutions for a disk are presented. Behaviour of these solutions in dependence of coefficients is investigated. The…

Soft Condensed Matter · Physics 2018-02-21 Yu. A. Bogan

We study regularity properties for solutions to elliptic equations that are degenerate or singular along orthogonal hyperplanes. The degenerate ellipticity is carried out by a weight term which is the monomial product of different powers of…

Analysis of PDEs · Mathematics 2025-11-21 Gabriele Cora , Gabriele Fioravanti , Francesco Pagliarin , Stefano Vita

Second-order two-scale expansions, a unified proof for the regularity of the correctors based on the translation invariant and a lemma for extracting $O(\epsilon)$ from the remainder term are presented for the second order nonlinear…

Mathematical Physics · Physics 2011-09-07 Zhang QiaoFu , Cui JunZhi

We obtain an explicit H\"older regularity result for viscosity solutions of a class of second order fully nonlinear equations leaded by operator that are neither convex/concave nor uniformly elliptic.

Analysis of PDEs · Mathematics 2021-03-09 Fausto Ferrari , Giulio Galise

In this article, we study regularity properties for degenerate parabolic double-phase equations. We establish continuity estimates for bounded weak solutions in terms of elliptic Riesz potentials on the right-hand side of the equation.

Analysis of PDEs · Mathematics 2025-02-04 Qifan Li

In this paper, we study the global H\"older regularity of solutions to uniformly degenerate parabolic equations. We also study the convergence of solutions as time goes to infinity under extra assumptions on the characteristic exponents of…

Analysis of PDEs · Mathematics 2025-01-14 Qing Han , Jiongduo Xie

In this paper we prove Holder regularity of the gradient for solutions of Dirichlet problem associate to degenerate elliptic equations, extending the recent result of Imbert and Silvestre. Indeed we obtain regularity up to the boundary and…

Analysis of PDEs · Mathematics 2012-08-03 I. Birindelli , F. Demengel

The focus of this paper is the study of the regularity properties of the time harmonic Maxwell's equations with anisotropic complex coefficients, in a bounded domain with $C^{1,1}$ boundary. We assume that at least one of the material…

Analysis of PDEs · Mathematics 2015-02-19 Giovanni S. Alberti , Yves Capdeboscq

This paper deals with regularity theory for two-phase free boundary variational problems ruled by degenerate elliptic operators.

Analysis of PDEs · Mathematics 2012-02-24 Olivaine S. de Queiroz , Eduardo V. Teixeira

A version of the nonlinear Hodge equations is introduced in which the irrotationality condition is weakened. An elliptic estimate for solutions is derived.

Mathematical Physics · Physics 2007-05-23 Thomas H. Otway

In this paper we study a Dirichlet problem for an elliptic equation with degenerate coercivity and a singular lower order term with natural growth with respect to the gradient. We will show that, even if the lower order term is singular, it…

Analysis of PDEs · Mathematics 2011-04-01 Gisella Croce