Results 31 to 40 of about 1,231,124 (145)

Graphical Ekeland's variational principle with a generalized $w$-distance and a new approach to quasi-equilibrium problems

open access: yesCarpathian Journal of Mathematics, 2022
In this paper, we introduce the generalized Ekeland's variational principle in several forms. The general setting of our results includes a graphical metric structure and also employs a generalized $w$-distance.
P. Chaipunya   +2 more
semanticscholar   +1 more source

An extension of Ekeland's variational principle to locally complete spaces [PDF]

open access: yes, 2007
We prove an extension of Ekeland's variational principle to locally complete spaces which uses subadditive, strictly increasing continuous functions as ...
García, C.L., García, A., Bosch, C.
core   +1 more source

The density of extremal points in Ekeland's variational principle [PDF]

open access: yes, 2007
In this paper, we investigate the density of extremal points appeared in Ekeland's variational principle. By introducing radial intersections of sets, we give a very general result on the density of extremal points in the framework of locally convex ...
Qiu, Jing-Hui
core   +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

A generalized form of Ekeland’s variational principle

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2012
In this paper we prove a generalized version of the Ekeland variational principle, which is a common generalization of Zhong variational principle and Borwein Preiss Variational principle.
Farkas Csaba
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

Ekeland’s variational principle in weak and strong systems of arithmetic [PDF]

open access: yesSelecta Mathematica, 2019
We analyze Ekeland’s variational principle in the context of reverse mathematics. We find that that the full variational principle is equivalent to Π11-CA0\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts ...
David Fernández-Duque   +2 more
semanticscholar   +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

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

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