Results 11 to 20 of about 371 (139)

Existence of Positive Solutions for a Class of (p(x), q(x))‐Laplacian Elliptic Systems with Multiplication of Two Separate Functions

open access: yesComplexity, Volume 2020, Issue 1, 2020., 2020
The paper deals with the study of the existence of weak positive solutions for a new class of the system of elliptic differential equations with respect to the symmetry conditions and the right hand side which has been defined as multiplication of two separate functions by using the sub‐supersolutions method (1991 Mathematics Subject Classification ...
Youcef Bouizem   +3 more
wiley   +3 more sources

On certain nonlinear elliptic systems with indefinite terms

open access: yesElectronic Journal of Differential Equations, 2002
We consider an elliptic quasi linear systems with indefinite term on a bounded domain. Under suitable conditions, existence and positivity results for solutions are given. Submitted April 2, 2002. Published October 2, 2002.
Ahmed Bensedik, Mohammed Bouchekif
doaj   +1 more source

Inequalities for Green's operator applied to the minimizers [PDF]

open access: yesJournal of Inequalities and Applications, 2011
In this paper, we prove both the local and global Lφ -norm inequalities for Green's operator applied to minimizers for functionals defined on differential forms in Lφ -averaging domains.
Ding Shusen, Agarwal Ravi
doaj   +2 more sources

Dirichlet problem for quasi-linear elliptic equations

open access: yesElectronic Journal of Differential Equations, 2002
We study the Dirichlet Problem associated to the quasilinear elliptic problem $$ -sum_{i=1}^{n}frac{partial }{partial x_i}mathcal{A}_i(x,u(x), abla u(x))+mathcal{B}(x,u(x),abla u(x))=0.
Azeddine Baalal, Nedra Belhaj Rhouma
doaj   +1 more source

Singular limiting solutions for elliptic problem involving exponentially dominated nonlinearity and convection term

open access: yesBoundary Value Problems, 2011
Given Ω bounded open regular set of ℝ2 and x1, x2, ..., xm ∈ Ω, we give a sufficient condition for the problem to have a positive weak solution in Ω with u = 0 on ∂Ω, which is singular at each xi as the parameters &#
Abid Imed   +3 more
doaj   +1 more source

On eigenvalue problems governed by the (p,q)-Laplacian [PDF]

open access: yes, 2023
This is a survey on recent results, mostly of the authors, regarding eigenvalue problems governed by the (p, q)−Laplacian and related open problems. Mathematics Subject Classification (2010): 35J60, 35J92, 35P30.
BARBU, Lumini¸ta   +3 more
core   +1 more source

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

Nonlinear elliptic equations by topological degree in Musielak-Orlicz-Sobolev spaces [PDF]

open access: yes, 2023
We prove by using the topological degree theory the existence of at least one weak solution for the nonlinear elliptic equation Mathematics Subject Classification (2010): 35J60, 35D30, 47J05, 47H11.
LAHMI, Badr, AIT HAMMOU, Mustapha
core   +1 more source

Positive solutions for the fractional Schrödinger equations with logarithmic and critical non‐linearities

open access: yesTransactions of the London Mathematical Society, Volume 8, Issue 1, Page 206-242, December 2021., 2021
Abstract In this paper, we study a class of fractional Schrödinger equations involving logarithmic and critical non‐linearities on an unbounded domain, and show that such an equation with positive or sign‐changing weight potentials admits at least one positive ground state solution and the associated energy is positive (or negative).
Haining Fan, Zhaosheng Feng, Xingjie Yan
wiley   +1 more source

Regularity for the two‐phase singular perturbation problems

open access: yesProceedings of the London Mathematical Society, Volume 123, Issue 5, Page 433-459, November 2021., 2021
Abstract We prove that an a priori bounded mean oscillation (BMO) gradient estimate for the two‐phase singular perturbation problem implies Lipschitz regularity for the limits. This problem arises in the mathematical theory of combustion, where the reaction diffusion is modeled by the p‐Laplacian. A key tool in our approach is the weak energy identity.
Aram Karakhanyan
wiley   +1 more source

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