Results 1 to 10 of about 24,259 (189)

Existence of solutions for a fourth-order boundary value problem on the half-line via critical point theory [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
In this paper, a fourth-order boundary value problem on the half-line is considered and existence of solutions is proved using a minimization principle and the mountain pass theorem.
Mabrouk Briki   +2 more
doaj   +11 more sources

On mountain pass theorem and its application to periodic solutions of some nonlinear discrete systems

open access: yesAdvances in Difference Equations, 2019
In this paper, we prove a new quantitative deformation lemma, and then gain a new mountain pass theorem in Hilbert spaces. By using the new mountain pass theorem, we obtain the new existence of two nontrivial periodic solutions for a class of nonlinear ...
Liang Ding, Jinlong Wei, Shiqing Zhang
doaj   +3 more sources

Note on an anisotropic p-Laplacian equation in $R^n$ [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2010
In this paper, we study a kind of anisotropic p-Laplacian equations in $R^n$. Nontrivial solutions are obtained using mountain pass theorem given by Ambrosetti-Rabinowitz.
S. El Manouni
doaj   +4 more sources

Multiple solutions for a quasilinear Choquard equation with critical nonlinearity

open access: yesOpen Mathematics, 2021
In the present work, we are concerned with the multiple solutions for quasilinear Choquard equation with critical nonlinearity in RN{{\mathbb{R}}}^{N}.
Li Rui, Song Yueqiang
doaj   +1 more source

On p-Laplace Equations with Singular Nonlinearities and Critical Sobolev Exponent

open access: yesJournal of Function Spaces, 2022
In this paper, we deal with p-Laplace equations with singular nonlinearities and critical Sobolev exponent. By using the Nehari manifold, Mountain Pass theorem, and Maximum principle theorem, we prove the existence of at least four distinct nontrivial ...
Mohammed El Mokhtar ould El Mokhtar
doaj   +1 more source

Existence and multiplications of solutions for a class of equation with a non-smooth potential [PDF]

open access: yesJournal of Hyperstructures, 2015
This paper deals with the existence and multiplicity of solutions for a class of nonlocal p−Kirchhoff problem. Using the mountain pass theorem and fountain theorem, we establish the existence of at least one solution and infinitely many solutions for a ...
Fariba Fattahi, M. Alimohammady
doaj   +1 more source

GENERAL QUASILINEAR PROBLEMS INVOLVING \(p(x)\)-LAPLACIAN WITH ROBIN BOUNDARY CONDITION

open access: yesUral Mathematical Journal, 2020
This paper deals with the existence and multiplicity of solutions for a class of quasilinear problems involving \(p(x)\)-Laplace type equation, namely $$ \left\{\begin{array}{lll} -\mathrm{div}\, (a(| \nabla u|^{p(x)})| \nabla u|^{p(x)-2} \nabla u ...
Hassan Belaouidel   +2 more
doaj   +1 more source

On a nonlinear eigenvalue problem in Sobolev spaces with variable exponent [PDF]

open access: yes, 2005
We consider a class of nonlinear Dirichlet problems involving the $p(x)$--Laplace operator. Our framework is based on the theory of Sobolev spaces with variable exponent and we establish the existence of a weak solution in such a space.
Dinu, Teodora Liliana
core   +7 more sources

Existence and Multiplicity of Fast Homoclinic Solutions for a Class of Damped Vibration Problems with Impulsive Effects

open access: yesAbstract and Applied Analysis, 2014
This paper is concerned with the existence and multiplicity of fast homoclinic solutions for a class of damped vibration problems with impulsive effects.
Qiongfen Zhang
doaj   +1 more source

Existence of solution to a critical equation with variable exponent [PDF]

open access: yes, 2012
In this paper we study the existence problem for the $p(x)-$Laplacian operator with a nonlinear critical source. We find a local condition on the exponents ensuring the existence of a nontrivial solution that shows that the Pohozaev obstruction does not ...
Bonder, Julián Fernández   +2 more
core   +1 more source

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