Results 21 to 30 of about 11,948 (261)

Some New Oscillation Criteria of Even-Order Quasi-Linear Delay Differential Equations with Neutral Term

open access: yesMathematics, 2021
The neutral delay differential equations have many applications in the natural sciences, technology, and population dynamics. In this paper, we establish several new oscillation criteria for a kind of even-order quasi-linear neutral delay differential ...
Rongrong Guo, Qingdao Huang, Qingmin Liu
doaj   +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

Oscillation of Solutions to Nonlinear Neutral Delay Differential Equations [PDF]

open access: yesJournal of Applied Analysis, 2002
The authors consider nonlinear neutral delay differential equations with variable coefficients. Some new sufficient conditions for the oscillation of all solutions are obtained. The results extend and improve some of the well known results in the literature. Some examples are considered to illustrate the main results. The neutral logistic equation with
Saker, S. H., Kubiaczyk, I.
openaire   +2 more sources

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

Stability and boundedness of nonautonomous neutral differential equation with delay [PDF]

open access: yesMathematica Moravica, 2020
We consider the nonautonomous neutral differential equation with delay h p(t) q(t) x(t) + b1x(t - r1) 0 0i0 + a(t) x 00(t) + b2x 00(t - r2) +b(t) x 0 (t) + b3x 0 (t - r3) + c(t)f(x(t - s)) = e(t, x, x0 , x 00).
Remili Moussadek, Oudjedi Linda D.
doaj  

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

On the Asymptotic Behavior of a Class of Second-Order Non-Linear Neutral Differential Equations with Multiple Delays

open access: yesAxioms, 2020
In this work, we present some new sufficient conditions for the oscillation of a class of second-order neutral delay differential equation. Our oscillation results, complement, simplify and improve recent results on oscillation theory of this type of non-
Shyam Sundar Santra   +2 more
doaj   +1 more source

Computational method for singularly perturbed delay differential equations with twin layers or oscillatory behaviour

open access: yesAin Shams Engineering Journal, 2015
In this paper, we have presented a computational method for solving singularly perturbed delay differential equations with twin layers or oscillatory behaviour. In this method, the original second order singularly perturbed delay differential equation is
D. Kumara Swamy   +3 more
doaj   +1 more source

On the Stability Analysis of Systems of Neutral Delay Differential Equations [PDF]

open access: yesCircuits, Systems, and Signal Processing, 2018
This paper focuses on the stability analysis of systems modeled as neutral delay differential equations (NDDEs). These systems include delays in both the state variables and their time derivatives. The proposed approach consists of a descriptor model transformation that constructs an equivalent set of delay differential algebraic equations (DDAEs) of ...
Liu, Muyang   +2 more
openaire   +3 more sources

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