Results 1 to 10 of about 163,164 (293)

On a fourth order elliptic problem with a p(x)-biharmonic operator

open access: yesApplied Mathematics Letters, 2014
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Lingju Kong
exaly   +3 more sources

Multiple Solutions for Nonlocal Elliptic Systems Involving p(x)-Biharmonic Operator [PDF]

open access: yesMathematics, 2019
This paper analyzes the nonlocal elliptic system involving the p(x)-biharmonic operator. We give the corresponding variational structure of the problem, and then by means of Ricceri’s Variational theorem and the definition of general Lebesgue-Sobolev space, we obtain sufficient conditions for the infinite solutions to this problem.
Qing Miao
exaly   +3 more sources

The existence of solutions for the modified $(p(x),q(x))$-Kirchhoff equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
We consider the Dirichlet problem \begin{equation*} - \Delta^{K_p}_{p(x)} u(x) - \Delta^{K_q}_{q(x)} u(x) = f(x,u(x), \nabla u(x)) \quad \mbox{in }\Omega, \quad u\big{|}_{\partial \Omega}=0, \end{equation*} driven by the sum of a $p(x ...
Giovany Figueiredo, Calogero Vetro
doaj   +1 more source

Existence and multiplicity of solutions for p ( x ) $p(x)$ -Laplacian problem with Steklov boundary condition

open access: yesBoundary Value Problems, 2022
We study the existence and multiplicity of weak solutions for an elliptic problem involving p ( x ) $p(x)$ -Laplacian operator under Steklov boundary condition. The approach is based on variational methods.
A. Khaleghi, A. Razani
doaj   +1 more source

The infimum eigenvalue for degenerate p(x)-biharmonic operator with the Hardy potentiel

open access: yesBoletim da Sociedade Paranaense de Matemática, 2022
The aim of this article is to study the existence of at least one unbounded nondecreasing sequence of nonnegative eigenvalues (λk)k≥1 for a class of elliptic Navier boundary value problems involving the degenerate p(·)-biharmonic operator with q(x)-Hardy inequality by using the variational technique based on the Ljusternik-Schnirelmann theory on C1 ...
Adnane Belakhdar   +3 more
openaire   +2 more sources

Solutions to p(x)-Laplace type equations via nonvariational techniques [PDF]

open access: yesOpuscula Mathematica, 2018
In this article, we consider a class of nonlinear Dirichlet problems driven by a Leray-Lions type operator with variable exponent. The main result establishes an existence property by means of nonvariational arguments, that is, nonlinear monotone ...
Mustafa Avci
doaj   +1 more source

Multiple solutions for nonlocal elliptic problems driven by $ p(x) $-biharmonic operator

open access: yesAIMS Mathematics, 2021
In this article, we study the existence of at least three distinct weak solutions for nonlocal elliptic problems involving p(x)-biharmonic operator. The results are obtained by means of variational methods. We also provide an example in order to illustrate our main abstract results. We extend and improve some recent results.
Fang-Fang Liao   +2 more
openaire   +3 more sources

Mixed finite element method for a beam equation with the p(x)-biharmonic operator

open access: yesComputers & Mathematics with Applications, 2023
In this paper, we consider a nonlinear beam equation with the p-biharmonic operator, where $1 < p < \infty$. Using a change of variable, we transform the problem into a system of differential equations and prove the existence, uniqueness and regularity of the weak solution by applying the Lax-Milgram theorem and classical results of functional ...
Rui M. P. Almeida   +3 more
openaire   +3 more sources

Transformation operators for impedance Sturm–Liouville operators on the line

open access: yesМатематичні Студії, 2023
In the Hilbert space $H:=L_2(\mathbb{R})$, we consider the impedance Sturm--Liouville operator $T:H\to H$ generated by the differential expression $ -p\frac{d}{dx}{\frac1{p^2}}\frac{d}{dx}p$, where the function  $p:\mathbb{R}\to\mathbb{R}_+$ is of ...
M. Kazanivskiy   +2 more
doaj   +1 more source

Existence and multiplicity results for a Steklov problem involving (p(x), q(x))-Laplacian operator

open access: yesMoroccan Journal of Pure and Applied Analysis, 2022
In this work, we are concerned with a generalized Steklov problem with (p(x), q(x))-Laplacian operator. Under some appropriate conditions on the data involved in the elliptic problem, we prove the existence of at least three solutions using Ricceri’s ...
Karim Belhadj   +3 more
doaj   +1 more source

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