Results 21 to 30 of about 3,100,158 (287)

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

Oscillation criteria for second order neutral differential equations [PDF]

open access: yes, 1990
summary:Our aim in this paper is to present sufficient conditions for the oscillation of the second order neutral differential equation \big(x(t)-px(t-\tau)\big)"+q(t)x\big(\sigma(t)\big ...
Mihalíková, Božena   +4 more
core   +1 more source

Solutions of the neutral differential-difference equation αx′(t)+βx′(t−r)+γx(t)+δx(t−r)=f(t)

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1992
Particular solutions and complementary functions are obtained for the functional equation αx′(t)+βx′(t−r)+γx(t)+δx(t−r)=f(t) in the forms of a convolution type integral and of infinite series.
Ll. G. Chambers
doaj   +1 more source

Periodic solution for ϕ-Laplacian neutral differential equation

open access: yesOpen Mathematics, 2019
This paper is devoted to the existence of a periodic solution for ϕ-Laplacian neutral differential equation as follows (ϕ(x(t)−cx(t−τ))′)′=f(t,x(t),x′(t)).$$\begin{array}{} (\phi(x(t)-cx(t-\tau))')'=f(t,x(t),x'(t)). \end{array}$$
Yao Shaowen, Cheng Zhibo
doaj   +1 more source

Attractivity for neutral functional differential equations

open access: yesDiscrete and Continuous Dynamical Systems - B, 2013
We study the long term dynamics of non-autonomous functional di fferential equations. Namely, we establish existence results on pullback attractors for non-linear neutral functional di erential equations with time varying delays. The two main results di er in smoothness properties of delay functions.
Caraballo Garrido, Tomás, Kiss, Gábor
openaire   +3 more sources

Impulsive partial neutral differential equations

open access: yesApplied Mathematics Letters, 2006
The authors establish conditions for the existence of mild and strong solutions of a partial neutral functional-differential equation with unbounded delay of the form \[ (d/dt)(x(t)+F(t, x_t)) = Ax(t)+G(t, x_t) \] subject to pre-assigned moments of impulse effects.
Eduardo Hernández Morales   +1 more
openaire   +4 more sources

Periodic solutions of a neutral impulsive differential equation

open access: yes上海师范大学学报. 自然科学版, 2017
In this paper, we consider a neutral impulsive differential equation. An impulsive predatorprey model with non-monotonic functional response is investigated. Some novel sufficient conditions are obtained for the nonexistence of periodic solutions and the
Hu Mi, Xia Yonghui
doaj   +1 more source

Results on the Behavior of the Solutions for Linear Impulsive Neutral Delay Differential Equations with Constant Coefficients

open access: yesCommunications in Advanced Mathematical Sciences, 2021
We have given some results regarding the behavior of solutions for first order linear impulsive neutral delay differential equations with constant coefficients.
Ali Fuat Yeniçerioğlu
doaj   +1 more source

Almost surely asymptotic stability of neutral stochastic differential delay equations with Markovian switching [PDF]

open access: yes, 2008
The main aim of this paper is to discuss the almost surely asymptotic stability of the neutral stochastic differential delay equations (NSDDEs) with Markovian switching.
Yuan, Chenggui   +4 more
core   +4 more sources

New oscillation criteria for third-order differential equations with bounded and unbounded neutral coefficients

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
This paper examines the oscillatory behavior of solutions to a class of third-order differential equations with bounded and unbounded neutral coefficients. Sufficient conditions for all solutions to be oscillatory are given.
Ercan Tunç   +3 more
doaj   +1 more source

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