Results 21 to 30 of about 5,321,104 (325)

A note on the radial solutions for the supercritical Henon equation [PDF]

open access: yes, 2007
We prove the existence of a positive radial solution for the H\'enon equation with arbitrary growth. The solution is found by means of a shooting method and turns out to be an increasing function of the radial variable. Some numerical experiments suggest
Adimurthi   +19 more
core   +3 more sources

Positive Solutions of Advanced Differential Systems [PDF]

open access: yesThe Scientific World Journal, 2013
We study asymptotic behavior of solutions of general advanced differential systems , where F : Ω → ℝn is a continuous quasi‐bounded functional which satisfies a local Lipschitz condition with respect to the second argument and Ω is a subset in , , yt∈, and yt(θ) = y(t + θ), θ ∈ [0, r]. A monotone iterative method is proposed to prove the existence of a
Mária Kúdelčíková, Josef Diblík
openaire   +4 more sources

Right focal boundary value problems for difference equations [PDF]

open access: yesOpuscula Mathematica, 2010
An application is made of a new Avery et al. fixed point theorem of compression and expansion functional type in the spirit of the original fixed point work of Leggett and Williams, to obtain positive solutions of the second order right focal discrete ...
Johnny Henderson   +3 more
doaj   +1 more source

Positive Solution of Singular BVPs for System of Dynamic Equations on Time Scales [PDF]

open access: yes, 2012
This paper is devoted to derive some necessary and suficient conditions for the existence of positive solutions to a singular second order system of dynamic equations with Dirichlet boundary conditions.
Lago, Ariadna   +2 more
core   +2 more sources

The parallel approximability of a subclass of quadratic programming [PDF]

open access: yes, 1997
In this paper we deal with the parallel approximability of a special class of Quadratic Programming (QP), called Smooth Positive Quadratic Programming. This subclass of QP is obtained by imposing restrictions on the coefficients of the QP instance.
Serna Iglesias, María José   +1 more
core   +1 more source

Existence of a positive solution for a singular system [PDF]

open access: yesProceedings of the Royal Society of Edinburgh: Section A Mathematics, 2010
We show the existence and non-existence of positive solutions to a system of singular elliptic equations with the Dirichlet boundary condition.
Da Silva Montenegro, Marcelo   +1 more
openaire   +2 more sources

Existence and uniqueness of positive solutions for a class of nonlinear fractional differential equations with mixed-type boundary value conditions

open access: yesNonlinear Analysis, 2018
In this article, we study a class of nonlinear fractional differential equations with mixed-type boundary conditions. The fractional derivatives are involved in the nonlinear term and the boundary conditions. By using the properties of the Green function,
Fang Wang   +3 more
doaj   +1 more source

Positive practices : solution-focused and narrative therapeutic techniques with children with sexually harmful behaviours [PDF]

open access: yes, 2006
This article explores the use of solution-focused and Narrative Therapeutic approaches with a boy who had sexually harmful behaviours. The paper will highlight the practical challenges of working with someone who is 'problem-saturated' through ...
Berg I. K.   +25 more
core   +1 more source

Existence of Positive Solution for a Fourth-order Differential System with Variable Coefficients [PDF]

open access: yesScientific Bulletin of the ''Petru Maior" University of Tîrgu Mureș, 2015
This paper investigates the existence of positive solutions for a fourth-order differential system using a fixed point theorem of cone expansion and compression type. The two main results give sufficient conditions to insure at least one and at least two
Béla Kovács   +2 more
doaj  

On Positive Solutions for Some Nonlinear Semipositone Elliptic Boundary Value

open access: yesNonlinear Analysis, 2006
This study concerns the existence of positive solutions to classes of boundary value problems of the form −∆u = g(x,u), x ∈ Ω, u(x) = 0, x ∈ ∂Ω, where ∆ denote the Laplacian operator, Ω is a smooth bounded domain in RN (N ≥ 2) with ∂Ω of class C2, and ...
G. A. Afrouzi, S. H. Rasouli
doaj   +1 more source

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