Results 21 to 30 of about 104,422 (284)

A Liapunov functional for a matrix neutral difference-differential equation with one delay [PDF]

open access: yes, 1917
For the matrix neutral difference-differential equation ẋ(t) + Aẋ(t − τ)  Bx(t) + Cx(t − τ) we construct a quadratic Liapunov functional which gives necessary and sufficient conditions for the asymptotic stability of the solutions of that equation. We
Fukuchi, N.   +6 more
core   +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

Solving neutral delay differential equations with state-dependent delays

open access: yesJournal of Computational and Applied Mathematics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
BELLEN A, GUGLIELMI, NICOLA
openaire   +3 more sources

New Improved Results for Oscillation of Fourth-Order Neutral Differential Equations

open access: yesMathematics, 2021
In this study, a new oscillation criterion for the fourth-order neutral delay differential equation ruxu+puxδu‴α′+quxβϕu=0,u≥u0 is established. By introducing a Riccati substitution, we obtain a new criterion for oscillation without requiring the ...
Osama Moaaz   +4 more
doaj   +1 more source

Implementation of variable step size strategy for solving neutral delay differential equation in multistep block method [PDF]

open access: yes, 2015
The numerical solution of neutral delay differential equation (NDDE) with variable step size implementation in multistep block method is addressed in this paper.
Abdul Aziz, Nurul Huda   +1 more
core   +1 more source

Positive periodic solution for third-order singular neutral differential equation with time-dependent delay

open access: yesAIMS Mathematics, 2020
In this paper, we investigate a class of third-order singular neutral differential equations with time-dependent delay. Applying Krasnoselskii’s fixed point theorem, we prove the existence results of a positive periodic solution for this neutral equation.
Yun Xin, Hao Wang
doaj   +1 more source

Hopf bifurcation analysis of scalar implicit neutral delay differential equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2018
Hopf bifurcation analysis is conducted on a scalar implicit Neutral Delay Differential Equation (NDDE) by means of the extension of two analytical methods: 1) center manifold reduction combined with normal form theory; 2) method of multiple scales.
Li Zhang, Gábor Stépán
doaj   +1 more source

Noncanonical Neutral DDEs of Second-Order: New Sufficient Conditions for Oscillation

open access: yesMathematics, 2021
In this paper, new oscillation conditions for the 2nd-order noncanonical neutral differential equation (a0t((ut+a1tug0t)′)β)′+a2tuβg1t=0, where t≥t0, are established.
Awatif A. Hindi   +4 more
doaj   +1 more source

Nonoscillatory solutions of neutral delay differential equations [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1993
Consider the following neutral delay differential equationwherep∈R,τ∈ (0, ∞), δ ∈R+= (0, ∞) and Q ∈ (C([t0, ∞),R). We show that ifthen Equation (*)has a nonoscillatory solution whenp≠ –1. We also deal in detail with a conjecture of Chuanxi, Kulenovic and Ladas, and Györi and Ladas.
Chen, Ming-Po, Yu, J. S., Wang, Z. C.
openaire   +1 more source

On Neutral Functional–Differential Equations with Proportional Delays

open access: yesJournal of Mathematical Analysis and Applications, 1997
The paper deals with the well-posedness of the initial value problem for the neutral functional-differential equation \[ y'(t)= ay(t)+ \sum_{i=1}^\infty b_iy(q_it)+ \sum_{i=1}^\infty cy'(p_it), \qquad t>0, \quad y(0)=y_0 \] and the asymptotic behaviour of its solutions.
Iserles, Arieh, Liu, Yunkang
openaire   +2 more sources

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