Results 91 to 100 of about 1,030,362 (113)

The Existence of Cone Critical Point and Common Fixed Point with Applications

open access: yesJournal of Applied Mathematics, 2011
We first establish some new critical point theorems for nonlinear dynamical systems in cone metric spaces or usual metric spaces, and then we present some applications to generalizations of Dancš-Hegedüs-Medvegyev's principle and the existence theorem ...
Wei-Shih Du
doaj   +1 more source

Ekeland's principle for vector equilibrium problem

open access: yes, 2007
In this paper, the authors deal with bifunctions defined on complete metric spaces and with values in locally convex spaces ordered by closed convex cones. The aim is to provide a vector version of Ekeland’s theorem related to equilibrium problems.
Bianchi, Monica, Pini, Rita
core   +1 more source

The Principal Principle Implies the Principle of Indifference [PDF]

open access: yes, 2015
We argue that David Lewis’s principal principle implies a version of the principle of indifference. The same is true for similar principles that need to appeal to the concept of admissibility. Such principles are thus in accord with objective Bayesianism,
Wallmann, Christian   +7 more
core   +1 more source

On an extension of Ekeland's variational principle for vector-valued functions

open access: yes, 1998
In this paper we give a version of Ekeland's variational principle together with a qualitative complement for vector valued functions.
STURIALE G.   +2 more
core  

Principle of proportionality as principle of economic efficiency

open access: yes, 2013
The principle of proportionality is at the cornerstone of EU law, and precisely of the case-law of the European Court of Justice (ECJ). In the law and economics literature, the general principles of law are commonly opposed to legal rules in terms of ...
Portuese, Aurelien, Portuese, A.
core   +1 more source

Eigenvalues for a Neumann Boundary Problem Involving the p(x)-Laplacian

open access: yesAdvances in Mathematical Physics, 2015
We study the existence of weak solutions to the following Neumann problem involving the p(x)-Laplacian operator:  -Δp(x)u+e(x)|u|p(x)-2u=λa(x)f(u), in  Ω, ∂u/∂ν=0, on  ∂Ω.
Qing Miao
doaj   +1 more source

Pontryagin Maximum Principle for Optimal Control of Variational Inequalities

open access: yes, 1999
International audienceIn this paper we investigate optimal control problems governed by variational inequalities. We present a method for deriving optimality conditions in the form of Pontryagin's principle.
Bergounioux, Maïtine, Zidani, Housnaa
core   +2 more sources

Nonhomogeneous elliptic problems of Kirchhoff type involving critical Sobolev exponents

open access: yesElectronic Journal of Differential Equations, 2015
This article concerns the existence and the multiplicity of solutions for nonhomogeneous elliptic Kirchhoff problems involving the critical Sobolev exponent, defined on a regular bounded domain of $\mathbb{R}^3$.
Safia Benmansour, Mohammed Bouchekif
doaj  

From Caristi’s Theorem to Ekeland’s Variational Principle in 0σ-Complete Metric-Like Spaces

open access: yesAbstract and Applied Analysis, 2014
We discuss the extension of some fundamental results in nonlinear analysis to the setting of 0σ-complete metric-like spaces. Then, we show that these extensions can be obtained via the corresponding results in standard metric spaces.
Mohamed Jleli   +3 more
doaj   +1 more source

From Quasi-variational Inclusion Problems to Stampacchia Vector Quasi-equilibrium Problems ,Stampacchia Set-valued Vector Ekeland's Variational Principle and Caristi's Fixed Point Theorem

open access: yes, 2011
[[abstract]]In this paper, we first study existence theorems of solution for quasivariational inclusion problems. We apply existence theorems of solution for quasivariational inclusion problem to study the existence theorems of solution for the ...
Lai-Jiu Lin; Chih sheng Chuang; Sung- Yu Wang
core  

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