Results 21 to 30 of about 2,856,138 (288)

Oscillations of First Order Neutral Differential Equations with Positive and Negative Coefficients

open access: yesمجلة بغداد للعلوم, 2014
Oscillation criterion is investigated for all solutions of the first-order linear neutral differential equations with positive and negative coefficients.
Baghdad Science Journal
doaj   +1 more source

ASYMPTOTIC STABILITY OF A NEUTRAL DIFFERENTIAL EQUATION [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 2002
AbstractThe uniform stability of the zero solution and the asymptotic behaviour of all solutions of the neutral delay differential equation$$ [x(t)-P(t)x(t-\tau)]'+Q(t)x(t-\sigma)=0,\quad t\ge t_0, $$are investigated, where $\tau,\sigma\in(0,\infty)$, $P\in C([t_0,\infty),\mathbb{R})$, and $Q\in C([t_0,\infty), [0,\infty))$.
Tang, X. H., Zou, Xingfu
openaire   +2 more sources

On the oscillation of neutral differential equations

open access: yesJournal of Mathematical Analysis and Applications, 1992
Using the method of the Laplace transform it is shown that all solutions of the neutral differential equation \[ {d\over dt}\left[x(t)+\delta\int^{\tau_ 2}_{\tau_ 1}x(t+s)d\mu(s)\right]+\int^{\sigma_ 2}_ {\sigma_ 1}x(t+s)d\eta(s)=0 \] are oscillatory if and only if the characteristic equation \[ \lambda\left[1+\delta\int^{\tau_ 2}_{\tau_ 1}e^{\lambda s}
Philos, C. G., Sficas, Y. G.
openaire   +3 more sources

An Asymptotic Result for neutral differential equations [PDF]

open access: yesApplied Mathematics and Nonlinear Sciences, 2020
Abstract We obtain asymptotic result for the solutions of neutral differential equations. Our technique depends on characteristic equations.
openaire   +2 more sources

Collocation schemes for periodic solutions of neutral delay differential equations [PDF]

open access: yes, 2005
We introduce two collocation schemes for the computation of periodic solutions of neutral delay differential equations (NDDEs): one based on a direct discretisation of the underlying NDDE, and one based on a discretisation of a related delay differential
Wilson, RE   +8 more
core   +1 more source

Nonoscillation of a class of neutral differential equations

open access: yesComputers & Mathematics with Applications, 2002
This paper deals with \(n\)th-order neutral differential equations of the form \[ (x(t)-x(t-\tau))^{(n)}+p(t)x(t-\sigma)=0, \] where \(n\) is an odd number, \(\tau>0, \sigma\in \mathbb{R}\), \(p\in C([0, \infty), [0, \infty))\). The authors establish a complete classification of nonoscillatory solutions of the equation and find conditions for each type
Kong, Qingkai   +2 more
openaire   +2 more sources

First Order Nonlinear Neutral Delay Differential Equations

open access: yesمجلة بغداد للعلوم, 2004
The author obtain results on the asymptotic behavior of the nonoscillatory solutions of first order nonlinear neutral differential equations. Keywords. Neutral differential equations, Oscillatory and Nonoscillatory solutions.
Baghdad Science Journal
doaj   +1 more source

Conditions for the Oscillation of Solutions to Neutral Differential Equations of Higher Order

open access: yes, 2023
In this research, we applied three techniques—the comparison technique, the Riccati technique, and the integral averages technique to analyze and establish various conditions and properties associated with the oscillatory behavior of even-order ...
Maryam Al-Kandari
core   +1 more source

General Solution of Linear Fractional Neutral Differential Difference Equations

open access: yesDiscrete Dynamics in Nature and Society, 2013
This paper is concerned with the general solution of linear fractional neutral differential difference equations. The exponential estimates of the solution and the variation of constant formula for linear fractional neutral differential difference ...
Hai Zhang, Jinde Cao, Wei Jiang
doaj   +1 more source

Periodic Averaging Principle for Neutral Stochastic Delay Differential Equations with Impulses

open access: yesComplexity, 2020
In this paper, we study the periodic averaging principle for neutral stochastic delay differential equations with impulses under non-Lipschitz condition.
Peiguang Wang, Yan Xu
doaj   +1 more source

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