Results 11 to 20 of about 1,033 (104)

Boundary regularity for manifold constrained p(x)‐harmonic maps

open access: yesJournal of the London Mathematical Society, Volume 104, Issue 5, Page 2335-2375, December 2021., 2021
Abstract We prove partial and full boundary regularity for manifold constrained p(x)‐harmonic maps.
Iwona Chlebicka   +2 more
wiley   +1 more source

An easy proof of Jensen's theorem on the uniqueness of infinity harmonic functions [PDF]

open access: yes, 2009
We present a new, easy, and elementary proof of Jensen's Theorem on the uniqueness of infinity harmonic functions. The idea is to pass to a finite difference equation by taking maximums and minimums over small balls.Comment: 4 pages; comments added ...
A.M. Oberman   +9 more
core   +4 more sources

Phragm\'en-Lindel\"of theorem for infinity harmonic functions [PDF]

open access: yes, 2015
We investigate a version of the Phragm\'en-Lindel\"of theorem for solutions of the equation $\Delta_\infty u=0$ in unbounded convex domains. The method of proof is to consider this infinity harmonic equation as the limit of the $p$-harmonic equation when
Granlund, Seppo, Marola, Niko
core   +2 more sources

A strong comparison principle for positive solutions of degenerate elliptic equations

open access: yesDifferential and Integral Equations, 2000
A strong comparison principle (SCP, for brevity) is obtained for nonnegative weak solutions u ∈ W 1,p 0 (Ω) of the following class of quasilinear elliptic boundary value problems, (P ) −div(a(x,∇u))− b(x, u) = f(x) in Ω; u = 0 on ∂Ω. Here, p ∈ (1,∞) is a
M. Cuesta, P. Takáč
semanticscholar   +1 more source

Flat solutions of the 1-Laplacian equation [PDF]

open access: yes, 2017
For every $f \in L^N(\Omega)$ defined in an open bounded subset $\Omega$ of $\mathbb{R}^N$, we prove that a solution $u \in W_0^{1, 1}(\Omega)$ of the $1$-Laplacian equation ${-}\mathrm{div}{(\frac{\nabla u}{|\nabla u|})} = f$ in $\Omega$ satisfies ...
Orsina, Luigi, Ponce, Augusto C.
core   +3 more sources

Regularity results for p-Laplacians in pre-fractal domains

open access: yesAdvances in Nonlinear Analysis, 2018
We study obstacle problems involving p-Laplace-type operators in non-convex polygons. We establish regularity results in terms of weighted Sobolev spaces. As applications, we obtain estimates for the FEM approximation for obstacle problems in pre-fractal
Capitanelli Raffaela   +2 more
doaj   +1 more source

HOMOGENIZATION OF THE SYSTEM OF HIGH‐CONTRAST MAXWELL EQUATIONS

open access: yesMathematika, Volume 61, Issue 2, Page 475-500, May 2015., 2015
We study the system of Maxwell equations for a periodic composite dielectric medium with components whose dielectric permittivities have a high degree of contrast between each other. We assume that the ratio between the permittivities of the components with low and high values of is of the order , where is the period of the medium.
Kirill Cherednichenko, Shane Cooper
wiley   +1 more source

Local and Global Existence of Strong Solutions to Large Cross Diffusion Systems

open access: yesAdvanced Nonlinear Studies, 2018
We study the solvability of a general class of cross diffusion systems and establish the local and global existence of their strong solutions under the weakest assumption that they are VMO.
Le Dung
doaj   +1 more source

Existence of solutions for a double-phase variable exponent equation without the Ambrosetti-Rabinowitz condition

open access: yesAdvances in Nonlinear Analysis, 2023
The article deals with the existence of a pair of nontrivial nonnegative and nonpositive solutions for a nonlinear weighted quasilinear equation in RN{{\mathbb{R}}}^{N}, which involves a double-phase general variable exponent elliptic operator A{\bf{A}}.
Liu Jingjing, Pucci Patrizia
doaj   +1 more source

Ni-Serrin type equations arising from capillarity phenomena with non-standard growth

open access: yes, 2013
In the present paper, in view of the variational approach, we discuss a Ni-Serrin type equation involving non-standard growth condition and arising from the capillarity phenomena.
M. Avci
semanticscholar   +1 more source

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