Results 11 to 20 of about 1,396 (250)

Razumikhin-type theorem for neutral stochastic functional differential equations with unbounded delay [PDF]

open access: yesActa Mathematica Scientia, 2011
This paper establishes the Razumikhin-type theorem on stability for neutral stochastic functional differential equations with unbounded delay. To overcome difficulties from unbounded delay, we develop several different techniques to investigate stability.
Wu Fuke
exaly   +2 more sources

Neutral functional differential equations of second-order with infinite delays [PDF]

open access: yesElectronic Journal of Differential Equations, 2010
This work shows the existence of mild solutions to neutral functional differential equations of second-order with infinite delay. The Hausdorff measure of noncompactness and fixed point theorem are used, without assuming compactness on the associated
Runping Ye, Guowei Zhang
doaj   +1 more source

Critical cases in neutral functional differential equations, arising from hydraulic engineering [PDF]

open access: yesOpuscula Mathematica, 2022
This paper starts from several applications described by initial/boundary value problems for \(1D\) (time and one space variable) hyperbolic partial differential equations whose basic properties and stability of equilibria are studied throughout the same
Vladimir Răsvan
doaj   +1 more source

Periodic solutions of neutral functional differential equations [PDF]

open access: yes, 2023
We provide sufficient conditions for the existence and uniqueness of periodic solutions of a general class of neutral functional differential equations of type [Formula presented] defined almost everywhere in R.
Afonso, S. M. [UNESP]   +2 more
core   +1 more source

Analysis of stochastic neutral fractional functional differential equations

open access: yesBoundary Value Problems, 2022
This work deals with the large deviation principle which studies the decay of probabilities of certain kind of extremely rare events. We consider stochastic neutral fractional functional differential equation with multiplicative noise and show large ...
Alagesan Siva Ranjani   +3 more
doaj   +1 more source

Exponential Stability of Impulsive Neutral Stochastic Functional Differential Equations

open access: yesMathematics, 2022
This paper focuses on the problem of the pth moment and almost sure exponential stability of impulsive neutral stochastic functional differential equations (INSFDEs).
Yunfeng Li, Pei Cheng, Zheng Wu
doaj   +1 more source

Some New Existence Results for Positive Periodic Solutions to First-Order Neutral Differential Equations with Variable Coefficients [PDF]

open access: yes, 2022
In this article, we deal with some new existence results for positive periodic solutions for a class of neutral functional differential equations by employing Krasnoselskii’s fixed-point theorem and the properties of a neutral operator. Our results
Lingping Zhang, Bo Du
core   +1 more source

Fourth-Order Neutral Differential Equation: A Modified Approach to Optimizing Monotonic Properties [PDF]

open access: yes, 2023
In this article, we investigate some qualitative properties of solutions to a class of functional differential equations with multi-delay. Using a modified approach, we first derive a number of optimized relations and inequalities that relate the ...
Amany Nabih   +4 more
core   +1 more source

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

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

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