Results 21 to 30 of about 179 (120)

Multiple Positive Solutions and Estimates of Extremal Values for a Nonlocal Problem with Critical Sobolev Exponent and Concave‐Convex Nonlinearities

open access: yesJournal of Function Spaces, Volume 2022, Issue 1, 2022., 2022
We are concerned with the following nonlocal problem involving critical Sobolev exponent −a−b∫Ω∇u2dxΔu=λuq−2u+δu2u,x∈Ω,u=0,x∈∂Ω, where Ω is a smooth bounded domain in ℝ4, a, b > 0, 1 < q < 2, δ, and λ are positive parameters. We prove the existence of two positive solutions and obtain uniform estimates of extremal values for the problem.
Zhigao Shi, Xiaotao Qian, Simone Secchi
wiley   +1 more source

General Versions of the Ekeland Variational Principle: Ekeland Points and Stop and Go Dynamics

open access: yesJournal of Optimization Theory and Applications, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Le Phuoc Hai   +2 more
openaire   +2 more sources

On Nonsmooth Global Implicit Function Theorems for Locally Lipschitz Functions from Banach Spaces to Euclidean Spaces

open access: yesAbstract and Applied Analysis, Volume 2022, Issue 1, 2022., 2022
In this paper, we establish a generalization of the Galewski‐Rădulescu nonsmooth global implicit function theorem to locally Lipschitz functions defined from infinite dimensional Banach spaces into Euclidean spaces. Moreover, we derive, under suitable conditions, a series of results on the existence, uniqueness, and possible continuity of global ...
Guy Degla   +3 more
wiley   +1 more source

Existence of Two Solutions for a Critical Elliptic Problem with Nonlocal Term in ℝ4

open access: yesJournal of Function Spaces, Volume 2022, Issue 1, 2022., 2022
In this paper, we prove the existence of two positive solutions for a critical elliptic problem with nonlocal term and Sobolev exponent in dimension four.
Khadidja Sabri   +4 more
wiley   +1 more source

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

open access: yesJournal of Function Spaces, Volume 2022, Issue 1, 2022., 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 solutions.
Mohammed El Mokhtar ould El Mokhtar   +1 more
wiley   +1 more source

Vectorial Ekeland Variational Principles and Inclusion Problems in Cone Quasi-Uniform Spaces

open access: yesAbstract and Applied Analysis, 2012
Some new vectorial Ekeland variational principles in cone quasi-uniform spaces are proved. Some new equivalent principles, vectorial quasivariational inclusion principle, vectorial quasi-optimization principle, vectorial quasiequilibrium principle are ...
Jiang Zhu   +3 more
doaj   +1 more source

Applications of an HIDS Theorem to the Existence of Fixed Point, Abstract Equilibria and Optimization Problems

open access: yesAbstract and Applied Analysis, 2011
By applying hybrid inclusion and disclusion systems (HIDS), we establish several vectorial variants of system of Ekeland's variational principle on topological vector spaces, some existence theorems of system of parametric vectorial quasi-equilibrium ...
Wei-Shih Du
doaj   +1 more source

Existence of solution for a Kirchhoff type problem involving the fractional p-Laplace operator

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
This paper is concerned with the existence of solutions to a Kirchhoff type problem involving the fractional $p$-Laplacian operator. We obtain the existence of solutions by Ekeland's variational principle.
Wenjing Chen, Shengbing Deng
doaj   +1 more source

The Multiplicity of Nontrivial Solutions for a New px-Kirchhoff-Type Elliptic Problem

open access: yesJournal of Function Spaces, 2021
In the paper, we study the existence of weak solutions for a class of new nonlocal problems involving a px-Laplacian operator. By using Ekeland’s variational principle and mountain pass theorem, we prove that the new px-Kirchhoff problem has at least two
Chang-Mu Chu, Yu-Xia Xiao
doaj   +1 more source

An Optimal Control Problem of Forward-Backward Stochastic Volterra Integral Equations with State Constraints

open access: yesAbstract and Applied Analysis, 2014
This paper is devoted to the stochastic optimal control problems for systems governed by forward-backward stochastic Volterra integral equations (FBSVIEs, for short) with state constraints.
Qingmeng Wei, Xinling Xiao
doaj   +1 more source

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