Results 11 to 20 of about 1,535,817 (290)

Oscillations of Neutral Delay Differential Equations

open access: yesCanadian Mathematical Bulletin, 1986
AbstractThe oscillatory behavior of the solutions of the neutral delay differential equationwhere p, τ, and a are positive constants and Q ∊ C([t0, ∞), ℝ+), are studied.
Ladas, G., Sficas, Y. G.
openaire   +3 more sources

On delay-dependent stability for neutral delay-differential systems [PDF]

open access: yes, 2001
The author studies stability problems for linear neutral differential delay systems via the so-called linear matrix inequalities method, which is simply the well-known Lyapunov functional method. Both delay (appear in the retarded terms) dependent and delay independent results are reported. Computational examples via MATLAB are also provided.
Han, Q. L., Qing-Long Han (9801650)
openaire   +2 more sources

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   +7 more
core   +4 more sources

Numerical solutions of neutral stochastic functional differential equations [PDF]

open access: yes, 2008
This paper examines the numerical solutions of neutral stochastic functional differential equations (NSFDEs) $d[x(t)-u(x_t)]=f(x_t)dt+g(x_t)dw(t)$, $t\geq 0$.
Wu, Fuke   +2 more
core   +4 more sources

Sensitivity to Infinitesimal Delays in Neutral Equations

open access: yesSIAM Journal on Control and Optimization, 2002
The stability of a steady state solution of a neutral functional differential equation can be sensitive to infinitesimal changes in the delays. This phenomenon is caused by the behavior of the essential spectrum and is determined by the roots of an exponential polynomial. Avellar and Hale [J. Math. Anal. Appl., 73 (1980), pp.
Wim Michiels   +3 more
openaire   +2 more sources

Important Criteria for Asymptotic Properties of Nonlinear Differential Equations

open access: yesMathematics, 2021
In this article, we prove some new oscillation theorems for fourth-order differential equations. New oscillation results are established that complement related contributions to the subject.
Ahmed AlGhamdi   +2 more
doaj   +1 more source

Regularization of Neutral Delay Differential Equations with Several Delays

open access: yesJournal of Dynamics and Differential Equations, 2013
This paper is concerned with the system of neutral delay differential equations \[ \dot{y}(t)=f(y(t), \dot{y}(\alpha_1(y(t))), \cdots, \dot{y}(\alpha_m(y(t))) \text{ for } t>0, \] \[ y(t)=\varphi(t) \text{ for } t\leq 0, \] with smooth functions \(f(y, z_1, z_2, \cdots, z_m)\), \(\varphi(t)\) and \(\alpha_j(t)\).
GUGLIELMI, NICOLA, HAIRER E.
openaire   +6 more sources

Effect of time delay on recognition memory for pictures: the modulatory role of emotion. [PDF]

open access: yesPLoS ONE, 2014
This study investigated the modulatory role of emotion in the effect of time delay on recognition memory for pictures. Participants viewed neutral, positive and negative pictures, and took a recognition memory test 5 minutes, 24 hours, or 1 week after ...
Bo Wang
doaj   +1 more source

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

On retarded nonlinear time-delay systems that generate neutral input-output equations

open access: yes, 2022
S.49-60In this work retarded nonlinear time-delay systems that surprisingly admit an input-output representation of neutral type are discussed. It is shown that such a behaviour is a strictly nonlinear phenomenon, as it cannot happen in the linear time ...
Anguelova, M., Halas, M.
core   +1 more source

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