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相关论文: Global stability of a distributed delayed viral mo…

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We investigate the global behaviour of a SIRI epidemic model with distributed delay and relapse. From the theory of functional differential equations with delay, we prove that the solution of the system is unique, bounded, and positive, for…

经典分析与常微分方程 · 数学 2019-08-12 Abdelhai Elazzouzi , Abdesslem Lamrani Alaoui , Mouhcine Tilioua , Delfim F. M. Torres

We study the global dynamics of a reaction-diffusion SEIR infection model with distributed delay and nonlinear incidence rate. The well-posedness of the proposed model is proved. By means of Lyapunov functionals, we show that the disease…

种群与进化 · 定量生物学 2022-04-21 Abdesslem Lamrani Alaoui , Moulay Rchid Sidi Ammi , Mouhcine Tilioua , Delfim F. M. Torres

In this chapter, we consider a reaction-diffusion SVIR infection model with dis-tributed delay and nonlinear incidence rate. The wellposedness of the proposed model is proved. By means of Lyapunov functionals, we show that the disease-free…

动力系统 · 数学 2025-03-10 Achraf Zinihi , Mostafa Tahiri , Moulay Rchid Sidi Ammi

In this paper, we investigate global dynamics for a system of delay differential equations which describes a virus-immune interaction in \textit{vivo}. The model has two distributed time delays describing time needed for infection of cell…

动力系统 · 数学 2010-08-17 Yukihiko Nakata

In this paper, we propose a delayed cytokine-enhanced viral infection model incorporating saturation incidence and immune response. We compute the basic reproduction numbers and introduce a convex cone to discuss the impact of non-negative…

动力系统 · 数学 2024-09-17 Xiaodong Cao , Songbo Hou , Xiaoqing Kong

We study a class of SIRS epidemic dynamical models with a general non-linear incidence rate and transfer from infectious to susceptible. The incidence rate includes a wide range of monotonic, con- cave incidence rates and some non-monotonic…

动力系统 · 数学 2017-07-21 Angel G. Cervantes-Pérez , Eric J. Avila-Vales

We investigate global stability properties of a HIV/AIDS population model with constant recruitment rate, mass action incidence, and variable population size. Existence and uniqueness results for disease-free and endemic equilibrium points…

种群与进化 · 定量生物学 2017-07-05 Cristiana J. Silva , Delfim F. M. Torres

In this paper we consider an SIRS epidemic model under a general assumption of density-dependent mortality. We prove the global stability of the disease-free equilibrium and propose a Lyapunov function that allows to demonstrate the global…

动力系统 · 数学 2018-12-31 Alberto d'Onofrio , Piero Manfredi , Ernesto Salinelli

We investigate an infection-age structured competitive epidemiological model involving multiple strains. While classical results establish competitive exclusion when a unique maximal basic reproduction number exists, we provide here a…

偏微分方程分析 · 数学 2026-04-01 Simon Girel , Quentin Richard

We propose and investigate an SEI infection's age model with a general class of nonlinear incidence rates. We give a necessary and sufficient condition for global asymptotic stability of the free-equilibrium related to the basic…

动力系统 · 数学 2017-08-22 Sofiane Bentout , Tarik Mohamed Touaoula

An epidemic model with distributed time delay is derived to describe the dynamics of infectious diseases with varying immunity. It is shown that solutions are always positive, and the model has at most two steady states: disease-free and…

混沌动力学 · 物理学 2012-09-21 K. B. Blyuss , Y. N. Kyrychko

A four-dimensional delay differential equations (DDEs) model of malaria with standard incidence rate is proposed. By utilizing the limiting system of the model and Lyapunov direct method, the global stability of equilibria of the model is…

动力系统 · 数学 2023-02-22 Songbai Guo , Min He , Jing-An Cui

The aim of this paper is to study the dynamics of a reaction--diffusion SIS (susceptible-infectious-susceptible) epidemic model with a nonlinear incidence rate describing the transmission of a communicable disease between individuals. We…

偏微分方程分析 · 数学 2020-11-12 Lamia Djebara , Redouane Douaifia , Salem Abdelmalek , Samir Bendoukha

Transmission dynamics of infectious diseases are often studied using compartmental mathematical models, which are commonly represented as systems of autonomous ordinary differential equations. A key step in the analysis of such models is to…

种群与进化 · 定量生物学 2025-12-15 David J. D. Earn , C. Connell McCluskey

A class of reaction-diffusion virus dynamics models with intracellular state-dependent delay and a general non-linear infection rate functional response is investigated. We are interested in classical solutions with Lipschitz in-time…

动力系统 · 数学 2019-01-01 Alexander Rezounenko

When an infectious disease propagates throughout society, the incidence function may rise at first due to an increase in pathogenicity and then decrease due to inhibitory effects until it reaches saturation. Effective vaccination and…

动力系统 · 数学 2023-07-11 Sushil Pathak , G. Shirisha , K. Venkata Ratnam

This paper studies the dynamics of a network-based SIRS epidemic model with vaccination and a nonmonotone incidence rate. This type of nonlinear incidence can be used to describe the psychological or inhibitory effect from the behavioral…

种群与进化 · 定量生物学 2018-11-14 Lijun Liu , Xiaodan Wei , Naimin Zhang

Assuming a general distribution for the sojourn time in the in- fectious class, we consider an SIS type epidemic model formulated as a scalar integral equation. We prove that the endemic equilibrium of the model is globally asymptotically…

动力系统 · 数学 2017-04-14 Yukihiko Nakata , Gergely Rost

We investigate the global dynamics of a renewal-type epidemic model with variable susceptibility. We show that in this extended model there exists a unique endemic equilibrium and prove that it is globally asymptotically stable when $R_0 >…

动力系统 · 数学 2020-07-24 Michael T. Meehan , Daniel G. Cocks , Emma S. McBryde

In this paper we consider the stability of a class of deterministic and stochastic SEIRS epidemic models with delay. Indeed, we assume that the transmission rate could be stochastic and the presence of a latency period of $r$ consecutive…

概率论 · 数学 2017-02-22 Xavier Bardina , Marco Ferrante , Carles Rovira
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