Results 11 to 20 of about 91,052 (310)

A New Sixth Order Method for Nonlinear Equations in R [PDF]

open access: yesThe Scientific World Journal, 2014
A new iterative method is described for finding the real roots of nonlinear equations in R. Starting with a suitably chosen x0, the method generates a sequence of iterates converging to the root.
Sukhjit Singh, D. K. Gupta
doaj   +4 more sources

Liouville type theorems for the system of fractional nonlinear equations in R + n ${R^{n}_{+}}$

open access: yesJournal of Inequalities and Applications, 2016
In this paper we consider the following system of fractional nonlinear equations in the half space R + n ${R^{n}_{+}}$ : 1 { ( − Δ ) α 2 u 1 ( x ) = x n γ u 1 α 1 ( x ) u 2 β 1 ( x ) , x ∈ R + n , ( − Δ ) α 2 u 2 ( x ) = x n γ u 1 α 2 ( x ) u 2 β 2 ( x )
Zhaohui Dai, Linfen Cao, Pengyan Wang
doaj   +2 more sources

On the development and extensions of some classes of optimal three-point iterations for solving nonlinear equations

open access: yesJournal of Numerical Analysis and Approximation Theory, 2021
We develop a new families of optimal eight--order methods for solving nonlinear equations. We also extend some classes of optimal methods for any suitable choice of iteration parameter.
Tugal Zhanlav, Otgondorj Khuder
doaj   +7 more sources

Comparison of some optimal derivative-free three-point iterations

open access: yesJournal of Numerical Analysis and Approximation Theory, 2020
We show that the well-known Khattri et al. methods and Zheng et al. methods are identical. In passing, we propose a suitable calculation formula for Khattri et al. methods.
Thugal Zhanlav, Khuder Otgondorj
doaj   +7 more sources

p-Laplacian Equations in R + N with Critical Boundary Nonlinearity [PDF]

open access: yesMathematics, 2020
In this paper, we consider the following p-Laplacian equation in R+N with critical boundary nonlinearity. The existence of infinitely many solutions of the equation is proved via the truncation method.
Xu Miao, Junfang Zhao, Xiangqing Liu
openaire   +1 more source

Solutions with multiple peaks for nonlinear Kirchhoff equations on R^3

open access: yesAnnales Fennici Mathematici, 2023
In this paper, we mainly investigate the following nonlinear Kirchhoff equation \(-\left(\epsilon^2 a+\epsilon b\int_{\mathbb{R}^3}|\nabla u|^2\right)\Delta u +u =Q(x)u^{q-1}\), \(u>0\), \(x\in\mathbb{R}^{3}\), \(u\to 0\), as \(|x|\to +\infty\),   where \(a,b>0\) are constants, \(2<q<6\), and \(\epsilon>0\) is a ...
Chen, Hong, Hua, Qiaoqiao
openaire   +2 more sources

Nonlocal Nonlinear Schrödinger Equations in R 3 [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2013
This paper studies a class of nonlocal nonlinear Schrodinger equations in R 3 , which occurs in the infinite ion acoustic speed limit of the Zakharov system with magnetic fields in a cold plasma. The magnetic fields induce some nonlocal effects in these nonlinear Schrodinger systems, and the main goal of this paper is to understand these effects.
Gan, Zaihui, Zhang, Jian
openaire   +1 more source

Anti-periodic boundary value problems for Caputo-Fabrizio fractional impulsive differential equations [PDF]

open access: yesMathematica Moravica, 2022
In this paper, we shall discuss the existence and uniqueness of solutions for a nonlinear anti-periodic boundary value problem for fractional impulsive differential equations involving a Caputo-Fabrizio fractional derivative of order r ∈ (0, 1).
Benyoub Mohammed, Belghaba Kacem
doaj   +1 more source

A nonlinear eigenvalue problem in $\Bbb R$ and multiple solutions of nonlinear Schrödinger equation

open access: yesAdvances in Differential Equations, 2002
Consider the nonlinear Sturm-Liouville eigenvalue problem \[ u''-Q(x)u+\lambda(Mu+f(u))=0,\quad x\in\mathbb R,\quad \lim_{| x| \to\infty}u(x)=\lim_{| x| \to\infty}u'(x)=0, \] where the potential \(Q\) is positive and coercive, the function \(f(s)\) behaves like \(s^p,p>1\), \(M\) is positive constant and \(\lambda\) is a positive parameter.
Felmer, P., Torres, J. J.
openaire   +5 more sources

The spectrum in $R$ and $R^2$ of nonlinear elliptic equations with positive parameters [PDF]

open access: yesRocky Mountain Journal of Mathematics, 2015
In this paper we study the spectrum in $\R$ and $\R^2$ of nonlinear elliptic equations with positive parameters in their nonlinear part. In order to investigate the spectrum in these specific cases, we introduce the monotone method which is an extension of the upper and lower solution methods.
Trejo, Imelda, Felipe, Raúl
openaire   +2 more sources

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