Results 21 to 30 of about 729 (179)

Existence of at least one nontrivial solution for a class of problems involving both p(x)-Laplacian and p(x)-Biharmonic

open access: yesپژوهش‌های ریاضی, 2022
We investigate the existence of a weak nontrivial solution for the following problem. Our analysis is generally bathed on discussions of variational based on the Mountain Pass theorem and some recent theories one the generalized Lebesgue-Sobolev space ...
Atieh Ramzannia Jalali   +1 more
doaj  

Multiplicity of positive solutions for second order quasilinear equations [PDF]

open access: yesMathematica Bohemica, 2020
We discuss the existence and multiplicity of positive solutions for a class of second order quasilinear equations. To obtain our results we will use the Ekeland variational principle and the Mountain Pass Theorem.
Dahmane Bouafia   +2 more
doaj   +1 more source

A variant of mountain pass theorem

open access: yesDifferential and Integral Equations, 2013
An existence result for a critical point of mountain-pass type, where the classical Palais--Smale condition is not required, is presented. A multiple-critical-point result is then obtained. As an application, the existence of two positive classical solutions for two-point boundary-value problems, without assuming any asymptotic condition on the ...
Bonanno, Gabriele, D'Aguì, Giuseppina
openaire   +2 more sources

Existence and Multiplicity of Homoclinic Orbits for Second-Order Hamiltonian Systems with Superquadratic Potential

open access: yesAbstract and Applied Analysis, 2013
We investigate the existence and multiplicity of homoclinic orbits for second-order Hamiltonian systems with local superquadratic potential by using the Mountain Pass Theorem and the Fountain Theorem, respectively.
Ying Lv, Chun-Lei Tang
doaj   +1 more source

Existence and Multiplicity of Solutions for a Class of Anisotropic Double Phase Problems

open access: yesAdvances in Mathematical Physics, 2020
We consider the following double phase problem with variable exponents: −div∇upx−2∇u+ax∇uqx−2∇u=λfx,u in Ω,u=0, on ∂Ω. By using the mountain pass theorem, we get the existence results of weak solutions for the aforementioned problem under some ...
Jie Yang, Haibo Chen, Senli Liu
doaj   +1 more source

The Existence Result for a p-Kirchhoff-Type Problem Involving Critical Sobolev Exponent

open access: yesJournal of Function Spaces, 2023
In this paper, by using the mountain pass theorem and the concentration compactness principle, we prove the existence of a positive solution for a p-Kirchhoff-type problem with critical Sobolev exponent.
Hayat Benchira   +3 more
doaj   +1 more source

Existence and multiplicity of positive solutions for a singular system via sub-supersolution method and Mountain Pass Theorem

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
In this paper we show existence and multiplicity of positive solutions using the sub-supersolution method and Mountain Pass Theorem in a general singular system which the operator is not homogeneous neither linear.
Suellen Arruda, Rubia Nascimento
doaj   +1 more source

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

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   +1 more source

On a Class of Schrödinger System Problem in Orlicz–Sobolev Spaces

open access: yesJournal of Function Spaces, 2022
Using the mountain pass theorem, we obtain the existence of a nontrivial and nonnegative weak solution of a quasi-linear Schrödinger system driven by the ω⋅-Laplacian operator in Orlicz–Sobolev spaces.
H. El-Houari, L. S. Chadli, H. Moussa
doaj   +1 more source

Existence, Non‐Existence, and Uniqueness of Solutions for a Generalized Fractional p‐Kirchhoff Equation

open access: yesMathematische Nachrichten, EarlyView.
ABSTRACT This paper investigates the existence and non‐existence and uniqueness of global solutions for certain parameter values c$c$ in a new class of generalized fractional p$p$‐Kirchhoff equations in the whole space. Using the Pohozaev and Nehari identities for an auxiliary problem, together with the fractional Gagliardo–Nirenberg inequality and the
J. Vanterler da C. Sousa   +2 more
wiley   +1 more source

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