[HTML][HTML] Existence and uniqueness for a neutral differential problem with unbounded delay via fixed point results

A Hussain, T Kanwal - Transactions of A. Razmadze Mathematical Institute, 2018 - Elsevier
Jleli and Samet (2018) introduced a new metric space and named it as F-space. In this
paper we consider the notion of α-ψ-contraction in the setting of F-metric spaces. We present …

Fixed points and stability in linear neutral differential equations with variable delays

A Ardjouni, A Djoudi - Nonlinear Analysis: Theory, Methods & Applications, 2011 - Elsevier
In this paper we consider the asymptotic stability of a generalized linear neutral differential
equation with variable delays by using the fixed point theory. An asymptotic stability theorem …

Mean-square stability of stochastic quaternion-valued neural networks with variable coefficients and neutral delays

Q Song, R Zeng, Z Zhao, Y Liu, FE Alsaadi - Neurocomputing, 2022 - Elsevier
In this paper, the stochastic quaternion-valued neural networks model with variable
coefficients and neutral delays is considered, and the mean-square stability criterion is …

[HTML][HTML] Stability results for stochastic delayed recurrent neural networks with discrete and distributed delays

G Chen, D Li, L Shi, O van Gaans, SV Lunel - Journal of Differential …, 2018 - Elsevier
We present new conditions for asymptotic stability and exponential stability of a class of
stochastic recurrent neural networks with discrete and distributed time varying delays. Our …

[PDF][PDF] Stability for linear neutral integro-differential equations with variable delays

A Ardjouni, A Djoudi, I Soualhia - Electronic journal of …, 2012 - kurims.kyoto-u.ac.jp
In this article we study a linear neutral integro-differential equation with variable delays and
give suitable conditions to obtain asymptotic stability of the zero solution, by means of fixed …

Stability in totally nonlinear neutral differential equations with variable delay

A Ardjouni, I Derrardjia, A Djoudi - Acta Mathematica …, 2014 - iam.fmph.uniba.sk
In this paper, we use a fixed point technique and the concept of large contractions to prove
asymptotic stability results of the zero solution of a class of the totally nonlinear neutral …

Stability by Krasnoselskii's theorem in totally nonlinear neutral differential equations

I Derrardjia, A Ardjouni, A Djoudi - Opuscula Mathematica, 2013 - infona.pl
In this paper we use fixed point methods to prove asymptotic stability results of the zero
solution of a class of totally nonlinear neutral differential equations with functional delay. The …

Global asymptotic stability of nonlinear neutral differential equation

G Liu, J Yan - Communications in Nonlinear Science and Numerical …, 2014 - Elsevier
In this paper, the following nonlinear neutral differential equation x′(t)=-a (t) x (t)+ c (t) x′(t-
τ 1 (t))+ q (t, x (t), x (t-τ 2 (t))) is considered. By using fixed point theory, we give some new …

Generalized exponential stability of neutral stochastic quaternion-valued neural networks with variable coefficients and infinite delay

D Ruan, Y Lu - Systems & Control Letters, 2024 - Elsevier
This paper focuses on neutral stochastic quaternion-valued neural networks (NSQNNs).
Employing some stochastic analysis and inequalities techniques, we establish several …

Stability in nonlinear neutral integro-differential equations with variable delay using fixed point theory

A Ardjouni, A Djoudi - Journal of Applied Mathematics and Computing, 2014 - Springer
The nonlinear neutral integro-differential equation d dt x (t)=-t-τ (t)^ ta (t, s) g\bigl (x (s)\bigr)
ds+ d dt G\bigl (t, x\bigl (t-τ (t)\bigr)\bigr), with variable delay τ (t)≥ 0 is investigated. We find …