Results 31 to 40 of about 74,529 (281)

A Generalized Halanay Inequality for Stability of Nonlinear Neutral Functional Differential Equations

open access: yesJournal of Inequalities and Applications, 2010
This paper is devoted to generalize Halanay's inequality which plays an important rule in study of stability of differential equations. By applying the generalized Halanay inequality, the stability results of nonlinear neutral functional differential
Wansheng Wang
doaj   +2 more sources

Oscillation of Emden–Fowler-Type Neutral Delay Differential Equations

open access: yesAxioms, 2020
In this work, we consider a type of second-order functional differential equations and establish qualitative properties of their solutions. These new results complement and improve a number of results reported in the literature.
Shyam Sundar Santra   +3 more
doaj   +1 more source

The Exponential Stability of Neutral Stochastic Delay Partial Differential Equations [PDF]

open access: yes, 2007
In this paper we analyse the almost sure exponential stability and ultimate boundedness of the solutions to a class of neutral stochastic semilinear partial delay differential equations.
Caraballo Garrido, Tomás   +2 more
core   +1 more source

Oscillations of first-order neutral delay differential equations

open access: yesJournal of Mathematical Analysis and Applications, 1986
Consider the neutral delay differential equation \[ (*)\quad (d/dt)[y(t)+py(t-\tau)]+qy(t-\sigma)=0,\quad t\geq t_ 0 \] where \(\tau\), q and \(\sigma\) are positive constants, while \(p\in (-\infty,-1)\cup (0,+\infty)\). Theorem 1. Assume \(p0\). Then every nonoscillatory solution y(t) of (*) tends to zero as \(t\to \infty\). Theorem 4. Assume \(p>0\).
Grammatikopoulos, M.K   +2 more
openaire   +1 more source

Asymptotically Almost Periodic Solutions for Abstract Partial Neutral Integro-Differential Equation [PDF]

open access: yes, 2010
The existence of asymptotically almost periodic mild solutions for a class of abstract partial neutral integro-differential equations with unbounded delay is ...
José Paulo C. dos Santos   +2 more
core   +2 more sources

Analytical and numerical stability of neutral delay integro-differential equations and neutral delay partial differential equations

open access: yesComputers & Mathematics with Applications, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wu, Shifeng, Gan, Siqing
openaire   +1 more source

Double-slit and electromagnetic models to complete quantum mechanics

open access: yes, 2017
We analyze a realistic microscopic model for electronic scattering with the neutral differential delay equations of motion of point charges of the Wheeler-Feynman electrodynamics.
De Luca, Jayme
core   +1 more source

On approximation of the solutions of delay differential equations by using piecewise constant arguments

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1991
By using the Gronwall Bellman inequality we prove some limit relations between the solutions of delay differential equations with continuous arguments and the solutions of some related delay differential equations with piecewise constant arguments(EPCA).
Istevan Györi
doaj   +1 more source

Oscillatory behavior of even-order nonlinear differential equations with a sublinear neutral term [PDF]

open access: yesOpuscula Mathematica, 2019
The authors present a new technique for the linearization of even-order nonlinear differential equations with a sublinear neutral term. They establish some new oscillation criteria via comparison with higher-order linear delay differential inequalities ...
John R. Graef   +2 more
doaj   +1 more source

Minimizers with discontinuous velocities for the electromagnetic variational method

open access: yes, 2011
The electromagnetic two-body problem has \emph{neutral differential delay} equations of motion that, for generic boundary data, can have solutions with \emph{discontinuous} derivatives. If one wants to use these neutral differential delay equations with \
A. Bellen   +6 more
core   +1 more source

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