Results 1 to 7 of about 7 (7)

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

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

[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

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

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

Weak solutions of degenerated quasilinear elliptic equations of higher order

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 19, Issue 4, Page 689-706, 1996., 1995
We prove the existence of weak solutions of higher order degenerated quasilinear elliptic equations. The main tools are the degree theory for generalized monotone mappings and imbedding theorems between weighted Sobolev spaces. The straightforward use of these imbeddings allows us to consider more general assumptions than those in our preceding paper ...
Pavel Drábek   +2 more
wiley   +1 more source
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