Results 101 to 110 of about 359 (156)

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

Minimal element theorems and Ekeland's variational principle with new set order relations

open access: yes, 2018
By using scalarization functions, we study minimal element theorem, Ekeland's variational principle, Caristi's fixed point theorem, Takahashi's minimization theorem under the set order relations on the family of sets defined by means of Minkowski ...
Yao, Jen Chih   +2 more
core  

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  

A Stochastic Maximum Principle for Forward-backward Stochastic Control Systems with Quadratic Generators and Sample-wise Constraints

open access: yes, 2023
This paper examines the stochastic maximum principle (SMP) for a forward-backward stochastic control system where the backward state equation is characterized by the backward stochastic differential equation (BSDE) with quadratic growth and the forward ...
Ji, Shaolin, Xu, Rundong
core  

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

An extension of Pontryagin's principle for state-constrained optimal control of semilinear elliptic equations and variational inequalities

open access: yes, 1992
Projet PROMATHThis paper deals with state-constrained optimal control problems governed by semilinear elliptic equations or variational inequalities. By using Ekeland's principle, we derive a minimum principle of Pontryagin's type under some stability ...
Casas, Eduardo, Bonnans, J. Frederic
core   +1 more source

On new critical point theorems without the Palais–Smale condition

open access: yes, 2016
In this paper we prove new theorems on critical point theory based on the weak Ekeland's variational ...
Briki, Mabrouk   +2 more
core   +1 more source

Minimization principle in ordered banach spaces and application via ekeland's variational principle

open access: yes, 2017
In this paper we establish a minimization principle in an ordered Banach space (in particular in a Riesz-Banach space). As an application we discuss the existence of a positive solution for a boundary value problem on the half-line even when the ...
Boucenna, Amina   +3 more
core   +1 more source

The discrete Brezis-Ekeland principle

open access: yesJournal of Convex Analysis, 2009
Summary: We discuss a global-in-time variational approach to the time-discretization of gradient flows of convex functionals in Hilbert spaces. In particular, a discrete version of the celebrated Brezis-Ekeland variational principle is considered.
openaire   +4 more sources

The relaxed stochastic maximum principle in singular optimal control of diffusions

open access: yes, 2007
This paper studies optimal control of systems driven by stochastic differential equations, where the control variable has two components, the first being absolutely continuous and the second singular. Our main result is a stochastic maximum principle for
Djehiche, Boualem,   +2 more
core   +1 more source

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