Results 51 to 60 of about 1,268 (110)

Necessary Condition for Near Optimal Control of Linear Forward-backward Stochastic Differential Equations

open access: yes, 2015
This paper investigates the near optimal control for a kind of linear stochastic control systems governed by the forward backward stochastic differential equations, where both the drift and diffusion terms are allowed to depend on controls and the ...
Huang, Jianhui   +2 more
core   +1 more source

Non‐autonomous double phase eigenvalue problems with indefinite weight and lack of compactness

open access: yesBulletin of the London Mathematical Society, Volume 56, Issue 2, Page 734-755, February 2024.
Abstract In this paper, we consider eigenvalues to the following double phase problem with unbalanced growth and indefinite weight, −Δpau−Δqu=λm(x)|u|q−2uinRN,$$\begin{equation*} \hspace*{3pc}-\Delta _p^a u-\Delta _q u =\lambda m(x)|u|^{q-2}u \quad \mbox{in} \,\, \mathbb {R}^N, \end{equation*}$$where N⩾2$N \geqslant 2$, 1
Tianxiang Gou, Vicenţiu D. Rădulescu
wiley   +1 more source

Multiple Solutions for a Singular Quasilinear Elliptic System

open access: yesThe Scientific World Journal, 2013
We consider the multiplicity of nontrivial solutions of the following quasilinear elliptic system , , , , , where , , , , , . The functions , , , , , , and satisfy some suitable conditions. We will prove that the problem has at least two nontrivial
Lin Chen, Caisheng Chen, Zonghu Xiu
doaj   +1 more source

Multiple solutions for a nonhomogeneous Schr\"odinger-Maxwell system in $R^3$

open access: yes, 2014
The paper considers the following nonhomogeneous Schr\"odinger-Maxwell system -\Delta u + u+\lambda\phi (x) u =|u|^{p-1}u+g(x),\ x\in \mathbb{R}^3, -\Delta\phi = u^2, \ x\in \mathbb{R}^3, .
Ambrosetti   +22 more
core   +1 more source

Stochastic singular optimal control problem of switching systems with constraints

open access: yesJournal of Inequalities and Applications, 2016
This paper is devoted to the optimal control problem of switching system in which constraints on the state variable are given by inclusions. Using Ekeland’s variational principle, second-order necessary condition of optimality for stochastic switching ...
Charkaz Aghayeva
doaj   +1 more source

A Nonsmooth Maximum Principle for Optimal Control Problems with State and Mixed Constraints-Convex Case [PDF]

open access: yes, 2013
Here we derive a nonsmooth maximum principle for optimal control problems with both state and mixed constraints. Crucial to our development is a convexity assumption on the "velocity set".
Ali Biswas   +2 more
core  

Fixed point theorems in metric spaces and probabilistic metric spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
In this paper, we prove some common fixed point theorems for compatible mappings of type (A) in metric spaces and probabilistic metric spaces Also, we extend Caristi's fixed point theorem and Ekeland's variational principle in metric spaces to ...
Yeol Je Cho   +2 more
doaj   +1 more source

Multiple solutions for Kirchhoff type problems involving super-linear and sub-linear terms

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
In this paper, we consider the multiplicity of solutions for a class of Kirchhoff type problems with concave and convex nonlinearities on an unbounded domain.
Xiaofei Cao, Junxiang Xu
doaj   +1 more source

On a nonhomogeneous quasilinear eigenvalue problem in Sobolev spaces with variable exponent [PDF]

open access: yes, 2006
We consider the nonlinear eigenvalue problem $-{\rm div}(|\nabla u|^{p(x)-2}\nabla u)=\lambda |u|^{q(x)-2}u$ in $\Omega$, $u=0$ on $\partial\Omega$, where $\Omega$ is a bounded open set in $\RR^N$ with smooth boundary and $p$, $q$ are continuous ...
Mihailescu, Mihai, Radulescu, Vicentiu
core   +1 more source

Multiple positive solutions for nonhomogeneous Schrodinger-Poisson systems with Berestycki-Lions type conditions

open access: yesElectronic Journal of Differential Equations, 2021
In this article, we consider the multiplicity of solutions for nonhomogeneous Schrodinger-Poisson systems under the Berestycki-Lions type conditions.
Lan-Xin Huang   +2 more
doaj  

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