Results 1 to 10 of about 1,485,446 (298)

New Criteria for Analyzing the Permanence, Periodic Solution, and Global Attractiveness of the Competition and Cooperation Model of Two Enterprises with Feedback Controls and Delays

open access: yesMathematics, 2023
This paper studies a class of the non-autonomous competition and cooperation model of two enterprises involving discrete time delays and feedback controls.
Ahmadjan Muhammadhaji, Yimamu Maimaiti
doaj   +1 more source

Dynamic analysis of stochastic delay mutualistic system of leaf-cutter ants with stage structure and their fungus garden

open access: yesJournal of Biological Dynamics, 2022
In this paper, we propose a stochastic delay mutualistic model of leaf-cutter ants with stage structure and their fungus garden, in which we explore how the discrete delay and white noise affect the dynamic of the population system.
Ruimin Zhang, Xiaohui Liu, Chunjin Wei
doaj   +1 more source

Forecasting the Effect of Pre-Exposure Prophylaxis (PrEP) on HIV Propagation with a System of Differential–Difference Equations with Delay

open access: yesMathematics, 2022
The HIV/AIDS epidemic is still active worldwide with no existing definitive cure. Based on the WHO recommendations stated in 2014, a treatment, called Pre-Exposure Prophylaxis (PrEP), has been used in the world, and more particularly in France since 2016,
Mostafa Adimy   +4 more
doaj   +1 more source

Analysis of Within-Host Mathematical Models of Toxoplasmosis That Consider Time Delays

open access: yesMathematics, 2023
In this paper, we investigate two within-host mathematical models that are based on differential equations. These mathematical models include healthy cells, tachyzoites, and bradyzoites. The first model is based on ordinary differential equations and the
Sharmin Sultana   +2 more
doaj   +1 more source

Robust Control of Bullwhip Effect for Supply Chain System With Time-Varying Delay on Basis of Discrete-Time Approach

open access: yesIEEE Access, 2023
The existence of time delay causes the operation of supply chain system to aggravate the instability, induce bullwhip effect and reduce overall performance.
Dong Chen   +5 more
doaj   +1 more source

Existence and stability for a semilinear fractional differential equation with two delays

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2022
In this paper, we are concerned with a class of nonlinear fractional differential equation with delays. By means of the contraction mapping principle, we prove the existence of a unique solution and investigate the continuous dependence of the solution ...
Atmania Rahima
doaj   +1 more source

Dynamics of Fractional-Order Neural Networks With Discrete and Distributed Delays

open access: yesIEEE Access, 2020
This paper is concerned with the stability and Hopf bifurcation of fractional-order neural networks with discrete and distributed delays. The novelty of this paper is to take into account the discrete time delay and the distributed time delay for ...
Lingzhi Si   +5 more
doaj   +1 more source

Research on Platoon Dispersion Delay of Traffic Flow considering Coordinated Control

open access: yesJournal of Advanced Transportation, 2021
To improve the traffic capacity and reduce the delay of signalized intersections, the delay of coordinated control intersections is studied. Based on the freedom and randomness of the speed change and considering the delay problem caused by the discrete ...
Yan Liu, Kuo Zhang, Li-jie Wang
doaj   +1 more source

New Stability Conditions for a Class of Nonlinear Discrete-Time Systems with Time-Varying Delay

open access: yesMathematics, 2020
In this paper, the stability problem of discrete time delay systems is investigated. The class of systems under consideration is represented by delayed difference equations and models nonlinear discrete time systems with time varying delay.
Sami Elmadssia, Karim Saadaoui
doaj   +1 more source

Exponential stability of discrete‐time delayed neural networks with saturated impulsive control

open access: yesIET Control Theory & Applications, 2021
This paper examines the problem of the locally exponentially stability for impulsive discrete‐time delayed neural networks (IDDNNs) with actuator saturation.
Zhilong He   +3 more
doaj   +1 more source

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