Results 1 to 10 of about 149 (74)

On the solvability of a boundary value problem on the real line [PDF]

open access: yesBoundary Value Problems, 2011
We investigate the existence of heteroclinic solutions to a class of nonlinear differential equations ( a ( x ) Φ ( x ′ ( t ) ) ) ′ = f ( t , x ( t ) , x ′ ( t ) ) , a . e . t &
Marcelli Cristina   +2 more
doaj   +4 more sources

GHM method for obtaining rationalsolutions of nonlinear differential equations. [PDF]

open access: yesSpringerplus, 2015
In this paper, we propose the application of the general homotopy method (GHM) to obtain rational solutions of nonlinear differential equations. It delivers a high precision representation of the nonlinear differential equation using a few linear ...
Vazquez-Leal H, Sarmiento-Reyes A.
europepmc   +2 more sources

Modeling measles transmission in adults and children: Implications to vaccination for eradication. [PDF]

open access: yesInfect Dis Model
Despite the availability of successful vaccines, measles outbreaks have occurred frequently in recent years, presumably due to the lack of proper vaccination implementation.
Pokharel A   +4 more
europepmc   +2 more sources

Solving nonlinear and non-autonomous ODEs systems by the ADM using a new several-variables Adomian polynomials

open access: yes, 2021
In this work, we adapted another time the Adomian decomposition method for solving nonlinear and non-autonomous ODEs systems. Therefore, our expressions of the Adomian polynomials are determined for a several-variable differential operators. The solution
Z. In, T Badredine
semanticscholar   +1 more source

New results on the existence of periodic solutions for Rayleigh equations with state-dependent delay

open access: yesNonautonomous Dynamical Systems, 2022
We consider a Rayleigh-type equation with state–dependent delay ℘″(ϑ)+𝒱1(ϑ,℘(ϑ))+A(℘(ϑ−𝒱2(ϑ,℘(ϑ))))=B(ϑ).\wp ''\left( \vartheta \right) + \mathcal{V}{_1}\left( {\vartheta ,\wp \left( \vartheta \right)} \right) + A\left( {\wp \left( {\vartheta ...
Eswari Rajendiran   +4 more
doaj   +1 more source

Third-order differential equations with three-point boundary conditions

open access: yesOpen Mathematics, 2021
In this paper, a third-order ordinary differential equation coupled to three-point boundary conditions is considered. The related Green’s function changes its sign on the square of definition. Despite this, we are able to deduce the existence of positive
Cabada Alberto, Dimitrov Nikolay D.
doaj   +1 more source

Analysis of positive solutions to one-dimensional generalized double phase problems

open access: yesAdvances in Nonlinear Analysis, 2022
We study positive solutions to the one-dimensional generalized double phase problems of the form: −(a(t)φp(u′)+b(t)φq(u′))′=λh(t)f(u),t∈(0,1),u(0)=0=u(1),\left\{\begin{array}{l}-(a\left(t){\varphi }_{p}\left(u^{\prime} )+b\left(t){\varphi }_{q}\left(u ...
Son Byungjae, Sim Inbo
doaj   +1 more source

Solution for a rotational pendulum system by the Rach–Adomian–Meyers decomposition method

open access: yesNonlinear Engineering, 2022
In this article, we report for the first time the application of a novel and extremely valuable methodology called the Rach–Adomian–Meyers decomposition method (MDM) to obtain numerical solutions to the rotational pendulum equation.
González-Gaxiola O.   +2 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

Existence of positive solutions for second-order nonlinear neutral dynamic equations on time scales

open access: yesMoroccan Journal of Pure and Applied Analysis, 2021
In this article we study the existence of positive solutions for second-order nonlinear neutral dynamic equations on time scales. The main tool employed here is Schauder’s fixed point theorem.
Bouchelaghem Faycal   +2 more
doaj   +1 more source

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