Results 81 to 90 of about 650 (101)

Positive solutions for elastic beam equations with nonlinear boundary conditions and a parameter

open access: yes, 2014
This paper is concerned with the existence, nonexistence, and uniqueness of convex monotone positive solutions of elastic beam equations with a parameter λ.
Wenxia Wang   +3 more
semanticscholar   +1 more source

Global Components of Positive Bounded Variation Solutions of a One-Dimensional Indefinite Quasilinear Neumann Problem

open access: yesAdvanced Nonlinear Studies, 2019
This paper investigates the topological structure of the set of the positive solutions of the one-dimensional quasilinear indefinite Neumann ...
López-Gómez Julian, Omari Pierpaolo
doaj   +1 more source

Existence of positive periodic solutions for third-order differential equation with strong singularity

open access: yesAdvances in Differential Equations, 2014
Sufficient conditions are presented for the existence of positive periodic solutions for a third-order nonlinear differential equation with singularity. Besides, an example is given to illustrate the results. MSC:34K13, 34B16, 34B18.
Zhibo Cheng
semanticscholar   +1 more source

Cribriform-type adenocarcinoma of the colorectum: comprehensive molecular analyses of a distinctive histologic subtype of colorectal cancer. [PDF]

open access: yesCarcinogenesis, 2022
Yamada S   +9 more
europepmc   +1 more source

The existence of solutions to a class of boundary value problems with fractional difference equations

open access: yes, 2013
In this paper, we study the existence and uniqueness of solutions for the boundary value problem of fractional difference equations {−Δνy(t)=f(t+ν−1,y(t+ν−1)),y(ν−3)=0,Δy(ν−3)=0,y(ν+b)=g(y) and {−Δνy(t)=λf(t ...
Yuan-Yuan Pan   +3 more
semanticscholar   +1 more source

Existence of solutions of a second-order impulsive differential equation

open access: yes, 2014
This paper is concerned with the existence of solutions of a second-order impulsive differential equation with mixed boundary condition. We obtain sufficient conditions for the existence of a unique solution, at least one solution, at least two solutions
Zhiguo Luo, Jingli Xie, Guoping Chen
semanticscholar   +1 more source

Positive solutions of nonlinear boundary value problems for delayed fractional q-difference systems

open access: yes, 2014
In this paper, we investigate the existence and uniqueness of positive solutions to nonlinear boundary value problems for delayed fractional q-difference systems by applying the properties of the Green function and some well-known fixed-point theorems ...
Qiaozhen Yuan, Wengui Yang
semanticscholar   +1 more source

A note on the singular Sturm-Liouville problem with infinitely many solutions

open access: yesElectronic Journal of Differential Equations, 2002
We consider the Sturm-Liouville nonlinear boundary-value problem $$ displaylines{ -u''(t) = a(t)f(u(t)), quad 0 < t < 1, cr alpha u(0) - eta u'(0) =0, quad gamma u(1) + delta u'(1) = 0, } $$ where $alpha$, $eta$, $gamma$, $delta geq 0$, $alpha gamma ...
Nickolai Kosmatov
doaj  

Eigenvalue problems for singular multi-point dynamic equations on time scales

open access: yesElectronic Journal of Differential Equations, 2017
In this article, we study a singular multi-point dynamic eigenvalue problem on time scales. We find existence of positive solutions by constructing the Green's function and studying its positivity eigenvalue intervals. Two examples are given to
Abdulkadir Dogan
doaj  

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