Results 1 to 10 of about 199 (47)

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

open access: yesAdvances 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   +3 more sources

Exact boundary behavior of the unique positive solution for singular second-order differential equations [PDF]

open access: yes, 2015
In this paper, we give the exact asymptotic behavior of the unique positive solution to the following singular boundary value problem \begin{equation*} \begin{cases} -\frac{1}{A}(Au^{\prime })^{\prime }=p(x)g(u),\quad x\in (0,1), \\ u>0,\quad \text{in ...
Bachar, Imed, Maagli, Habib
core   +21 more sources

Using Krasnoselskii's theorem to investigate the Cauchy and neutral fractional q-integro-differential equation via numerical technique

open access: yesNonlinear Engineering, 2022
This article discusses the stability results for solution of a fractional q-integro-differential problem via integral conditions. Utilizing the Krasnoselskii’s, Banach fixed point theorems, we demonstrate existence and uniqueness results.
Yue Xiao-Guang   +4 more
doaj   +1 more source

Boundary value problems associated with singular strongly nonlinear equations with functional terms

open access: yesAdvances in Nonlinear Analysis, 2020
We study boundary value problems associated with singular, strongly nonlinear differential equations with functional terms of ...
Biagi Stefano   +3 more
doaj   +1 more source

Uniqueness of positive solutions for boundary value problems associated with indefinite ϕ-Laplacian-type equations

open access: yesOpen Mathematics, 2021
This paper provides a uniqueness result for positive solutions of the Neumann and periodic boundary value problems associated with the ϕ-Laplacian equation (ϕ(u′))′+a(t)g(u)=0,(\phi \left(u^{\prime} ))^{\prime} +a\left(t)g\left(u)=0, where ϕ is a ...
Boscaggin Alberto   +2 more
doaj   +1 more source

On multi-step methods for singular fractional q-integro-differential equations

open access: yesOpen Mathematics, 2021
The objective of this paper is to investigate, by applying the standard Caputo fractional q-derivative of order α\alpha , the existence of solutions for the singular fractional q-integro-differential equation Dqα[k](t)=Ω(t,k1,k2,k3,k4){{\mathcal{D}}}_{q}^
Hajiseyedazizi Sayyedeh Narges   +3 more
doaj   +1 more source

π/4-tangentiality of solutions for one-dimensional Minkowski-curvature problems

open access: yesAdvances in Nonlinear Analysis, 2020
We analyze π4$\begin{array}{} \frac{\pi}{4} \end{array} $-tangentiality of solutions for several types of scalar equations and systems of one-dimensional Minkowski-curvature problems with two points Dirichlet boundary conditions, which is dependent on ...
Yang Rui, Sim Inbo, Lee Yong-Hoon
doaj   +1 more source

Existence results for a fourth order partial differential equation arising in condensed matter physics [PDF]

open access: yes, 2015
We study a higher order parabolic partial differential equation that arises in the context of condensed matter physics. It is a fourth order semilinear equation whose nonlinearity is the determinant of the Hessian matrix of the solution. We consider this
Escudero, Carlos   +4 more
core   +2 more sources

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

Boundary Layer Effects on Ionic Flows Via Classical Poisson-Nernst-Planck Systems

open access: yesComputational and Mathematical Biophysics, 2018
A quasi-one-dimensional steady-state Poisson-Nernst-Planck model of two oppositely charged ion species through a membrane channel is analyzed. The model problem is treated as a boundary value problem of a singularly perturbed differential system.
Zhang Mingji
doaj   +1 more source

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