Results 81 to 90 of about 440 (168)

Existence of Normalized Solutions of a Hartree–Fock System With Mass Subcritical Growth

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 12, Page 12309-12319, August 2025.
ABSTRACT In this paper, we are concerned with normalized solutions of a class of Hartree‐Fock type systems. By seeking the constrained global minimizers of the corresponding functional, we prove that the existence and nonexistence of normalized solutions.
Hua Jin   +3 more
wiley   +1 more source

A mountain pass algorithm with projector

open access: yes, 2012
In this paper, we present an enhanced version of the minimax algorithm of Chen, Ni, and Zhou that offers the additional guarantee that the solution found is a fix-point of a projector on a cone.
Tacheny, N.   +5 more
core   +1 more source

Multiplicity of solutions to the sum of polyharmonic equations with critical Sobolev exponents

open access: yesElectronic Journal of Differential Equations, 2015
In this article, we prove multiplicity of solutions for the sum of polyharmonic equation with critical Sobolev exponent. The proof is based upon the methods of weakly lower semi-continuous of the functionals and the Mountain Pass Lemma without (PS ...
Wei Liu, Gao Jia, Lu-Quian Guo
doaj  

On the mountain pass lemma [PDF]

open access: yes, 1985
MathematicsSCI(E)2ARTICLE203 ...
CHANG, KC, Kung-Ching Chang
core  

Periodic Solutions of a Class of Fourth-Order Superlinear Differential Equations

open access: yesAbstract and Applied Analysis, 2012
This paper deals with the periodic solutions of a class of fourth-order superlinear differential equations. By using the classical variational techniques and symmetric mountain pass lemma, the periodic solutions of a single equation in literature are ...
Yanyan Li, Yuhua Long
doaj   +1 more source

Boundary Value Problems for Fourth Order Nonlinear p-Laplacian Difference Equations

open access: yesJournal of Applied Mathematics, 2014
We consider the boundary value problem for a fourth order nonlinear p-Laplacian difference equation containing both advance and retardation. By using Mountain pass lemma and some established inequalities, sufficient conditions of the existence of ...
Qinqin Zhang
doaj   +1 more source

Infinitely many solutions for a class of hemivariational inequalities involving p(x)-Laplacian

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
In this paper hemivariational inequality with nonhomogeneous Neumann boundary condition is investigated. The existence of infinitely many small solutions involving a class of p(x) - Laplacian equation in a smooth bounded domain is established.
Fattahi Fariba, Alimohammady Mohsen
doaj   +1 more source

Positive solutions of multiparameter semipositone p-Laplacian problems

open access: yes, 2008
We obtain multiple positive solutions of multiparameter semipositone p-Laplacian problems using the sub- and supersolution method and the mountain pass ...
Shivaji, Ratnasingham   +3 more
core   +1 more source

Characterization of solutions to equations involving the p(x)-Laplace operator

open access: yesElectronic Journal of Differential Equations, 2017
In this article we study two problems, a nonlinear eigenvalue problem involving the p(x)-Laplacian and a subcritical boundary value problem for the same operator.
Iulia Dorotheea Stircu   +1 more
doaj  

Multiple solutions of fourth-order difference equations with different boundary conditions

open access: yesBoundary Value Problems, 2019
In the present paper, a class of fourth-order nonlinear difference equations with Dirichlet boundary conditions or periodic boundary conditions are considered. Based on the invariant sets of descending flow in combination with the mountain pass lemma, we
Yuhua Long, Shaohong Wang, Jiali Chen
doaj   +1 more source

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