Results 71 to 80 of about 650 (101)

One-dimensional singular problems involving the p-Laplacian and nonlinearities indefinite in sign

Advances in Nonlinear Analysis, 2016
Let Ω be a bounded open interval, let p>1${p>1}$ and γ>0${\gamma>0}$, and let m:Ω→ℝ${m:\Omega\rightarrow\mathbb{R}}$ be a function that may change sign in Ω.
Kaufmann Uriel, Medri Iván
doaj   +1 more source

Existence of positive periodic solutions of second-order differential equations with weak singularities

Boundary Value Problems, 2014
We establish the existence of positive periodic solutions of the second-order differential equation x″+a(t)x=f(t,x)+c(t) via Schauder’s fixed point theorem, where a∈L1(R/TZ;R+), c∈L1(R/TZ;R), f is a Caratheodory function and it is singular at x=0.
You Ma
semanticscholar   +1 more source

Existence and multiplicity of positive solutions for multiparameter periodic systems

Open Mathematics
We deal with the existence and multiplicity of positive solutions for differential systems depending on two parameters, λ1,λ2{\lambda }_{1},{\lambda }_{2}, subjected to periodic boundary conditions.
Wei Liping, Dai Yongqiang, Su Shunchang
doaj   +1 more source

Existence and global asymptotic behavior of positive solutions for combined second-order differential equations on the half-line

Advances in Nonlinear Analysis, 2016
We are concerned with the existence, uniqueness and global asymptotic behavior of positive continuous solutions to the second-order boundary value ...
Bachar Imed, Mâagli Habib
doaj   +1 more source

Multi-strip fractional q-integral boundary value problems for nonlinear fractional q-difference equations

, 2014
In this article, we study the existence and uniqueness of solutions for multi-strip fractional q-integral boundary value problems of nonlinear fractional q-difference equations.
Nittaya Pongarm, S. Asawasamrit, J. Tariboon, S. Ntouyas   +3 more
semanticscholar   +1 more source

Existence and nonexistence of positive solutions for fractional-order two-point boundary value problems

Advances in Differential Equations, 2014
The purpose of this paper is to establish some results on the existence and nonexistence of positive solutions for a type of nonlinear fractional-order two-point boundary value problems.
Yongping Sun, Xiaoping Zhang
semanticscholar   +1 more source

Positive solutions of nth-order impulsive differential equations with integral boundary conditions

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
This paper is concerned with the existence and nonexistence of positive solutions of nth-order impulsive boundary value problem with integral boundary conditions.
Tokmak Fen Fatma, Yaslan Karaca Ilkay
doaj   +1 more source

New criteria for the existence of non-trivial fixed points in cones

, 2013
We give new criteria for the existence of nontrivial fixed points on cones assuming some monotonicity of the operator on a suitable conical shell. Moreover, we give an application to the existence of multiple solutions for a nonlocal boundary value ...
A. Cabada, J. Cid, G. Infante
semanticscholar   +1 more source

Positive solutions for second order impulsive differential equations with Stieltjes integral boundary conditions

Advances in Differential Equations, 2012
In this paper, we study the existence of positive solutions for a singular second order impulsive differential equations with Stieltjes integral boundary conditions.
Jiqiang Jiang, Lishan Liu, Yonghong Wu
semanticscholar   +1 more source

A new Bihari inequality and initial value problems of first order fractional differential equations. [PDF]

Fract Calc Appl Anal, 2023
Lan K, Webb JRL.
europepmc   +1 more source