Results 41 to 50 of about 2,861,683 (201)

EXISTENCE OF NONOSCILLATORY SOLUTIONS OF SECOND-ORDER NEUTRAL DIFFERENTIAL EQUATIONS

open access: yes, 2019
We obtain some sufficient conditions for the existence of nonoscillatory solutions of nonlinear second order neutral differential equation with forcing term. Our results improve and extend some existing results.
ŞENEL, MEHMET TAMER   +2 more
core   +2 more sources

Oscillatory and nonoscillatory solutions for first order impulsive differential inclusions [PDF]

open access: yes, 2005
summary:In this paper we discuss the existence of oscillatory and nonoscillatory solutions of first order impulsive differential inclusions. We shall rely on a fixed point theorem of Bohnenblust-Karlin combined with lower and upper solutions ...
Ouahab, Abdelghani, Benchohra, Mouffak
core  

Existence of nonoscillatory solutions of higher order neutral differential equations with distributed deviating arguments [PDF]

open access: yes, 2013
In this work, we consider the existence of nonoscillatory solutions of variable coefficient higher order linear neutral differential equations with distributed deviating arguments.
Candan, T., Dahiya, R. S.
core   +1 more source

A Comparative Study of Low‐Dissipation Numerical Schemes for Hyperbolic Conservation Laws

open access: yesNumerical Methods for Partial Differential Equations, Volume 42, Issue 5, September 2026.
ABSTRACT This work provides a comparative assessment of several low‐dissipation numerical schemes for hyperbolic conservation laws, highlighting their performance relative to the classical Harten‐Lax‐van Leer (HLL) schemes. The schemes under consideration include the classical Harten‐Lax‐van Leer‐Contact (HLLC), the recently proposed TV flux splitting,
Shaoshuai Chu, Michael Herty
wiley   +1 more source

Oscillation and nonoscillation for Caputo–Hadamard impulsive fractional differential inclusions

open access: yesAdvances in Difference Equations, 2019
In this paper, the concept of upper and lower solutions method combined with the fixed point theorem is used to investigate the existence of oscillatory and nonoscillatory solutions for a class of initial value problem for Caputo–Hadamard impulsive ...
Mouffak Benchohra   +2 more
doaj   +1 more source

Nonoscillatory solutions for the one-dimensional p-Laplacian

open access: yesJournal of Computational and Applied Mathematics, 1998
The author studies the existence of nonoscillatory solutions of the equation \[ \Delta \Phi(\Delta x_{k-1})+f(k,x_k)=0,\quad k=1,2,\cdots \] where \(\Phi:R\rightarrow R\) is defined by \(\Phi(s)=|s|^{p-1}s\) (\(p>1\) fixed), \(f:N\times R\rightarrow R^+\) and \(\{x_k\}_1^\infty\) is a nonnegative sequence with infinitely many positive terms.
openaire   +1 more source

Existence of Nonoscillatory Solutions of First Order Nonlinear Neutral Dierence Equations [PDF]

open access: yes, 2015
In this paper, we discuss the existence of nonoscillatory solutions of first order nonlinear neutral difference equations of the form We use the Knaster-Tarski xed point theorem to obtain some sucient conditions for the existence of nonoscillatory ...
Ayyappan, G, Arul, R, Alagesan, K
core   +1 more source

Local Field Aperiodic Spectral Power Modulated by Deep Brain Stimulation in Parkinson's Disease

open access: yesMovement Disorders, Volume 41, Issue 5, Page 1163-1172, May 2026.
Abstract Background Aperiodic spectral broadband power has been described recently as reflecting Parkinson's disease (PD) severity. It has therefore become an increasing focus of research interest in the context of the new adaptive deep brain stimulation (DBS) approach.
Martin Lamoš   +6 more
wiley   +1 more source

Oscillation criteria for certain nonlinear fourth order equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1983
This work investigates the behavior of solutions of certain nonlinear fourth order differential equations. An example is given showing that these equations can have both oscillatory and nonoscillatory solutions simultaneously.
W. E. Taylor
doaj   +1 more source

Oscillation of Nonlinear Differential Equations with Advanced Arguments

open access: yesمجلة بغداد للعلوم, 2008
This paper is concerned with the oscillation of all solutions of the n-th order delay differential equation . The necessary and sufficient conditions for oscillatory solutions are obtained and other conditions for nonoscillatory solution to converge ...
Baghdad Science Journal
doaj   +1 more source

Home - About - Disclaimer - Privacy