Results 11 to 20 of about 909 (87)

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

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

[Retracted] Nonlinear eigenvalue problems in Sobolev spaces with variable exponent

open access: yesJournal of Function Spaces, Volume 4, Issue 3, Page 225-242, 2006., 2006
We study the boundary value problem −div?((|?u|p1(x)−2 + |?u|p2(x)−2)?u) = f(x, u) in O, u = 0 on ?O, where O is a smooth bounded domain in RN. We focus on the cases when f±(x, ??u) = ±(−?|u|m(x)−2u + |u|q(x)−2u), where m(x)?max??{p12(x),p(x)}
Teodora-Liliana Dinu, George Isac
wiley   +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

Solvability of nonlinear Dirichlet problem for a class of degenerate elliptic equations

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 3, Page 205-214, 2004., 2004
We prove an existence result for solution to a class of nonlinear degenerate elliptic equation associated with a class of partial differential operators of the form Lu(x)=∑i,j=1nDj(aij(x)Diu(x)), with Dj = ∂/∂xj, where aij : Ω → ℝ are functionssatisfying suitable hypotheses.
Albo Carlos Cavalheiro
wiley   +1 more source

Variational inequalities for energy functionals with nonstandard growth conditions

open access: yesAbstract and Applied Analysis, Volume 3, Issue 1-2, Page 41-64, 1998., 1998
We consider the obstacle problem for a given function and a bounded Lipschitz domain O in Rn. The growth properties of the convex integrand G are described in terms of a N‐function A : [0, 8)?[0, 8) with . If n = 3, we prove, under certain assumptions on G, C1,8‐partial regularity for the solution to the above obstacle problem.
Martin Fuchs, Li Gongbao
wiley   +1 more source

Integral Formulas for a Class of Curvature PDE'S and Application to Isoperimetric Inequalities and to Symmetry Problems [PDF]

open access: yes, 2007
We prove integral formulas for closed hypersurfaces in C^(n+1); which furnish a relation between elementary symmetric functions in the eigenvalues of the complex Hessian matrix of the defining function and the Levi curvatures of the hypersurface. Then
Martino, Vittorio, Montanari, Annamaria
core   +2 more sources

A result on the bifurcation from the principal eigenvalue of the Ap‐Laplacian

open access: yesAbstract and Applied Analysis, Volume 2, Issue 3-4, Page 185-195, 1997., 1997
We study the following bifurcation problem in any bounded domain Ω in ℝN: . We prove that the principal eigenvalue λ1 of the eigenvalue problem is a bifurcation point of the problem mentioned above.
P. Drábek, A. Elkhalil, A. Touzani
wiley   +1 more source

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