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Research focus on optimal control problems brought on by fractional differential equations has been extensively applied in practice. However, because they are still open-ended and challenging, a number of problems with fractional…

种群与进化 · 定量生物学 2023-04-25 Samuel Okyere , Joseph Ackora-Prah , Kwaku Forkuoh Darkwah , Francis Tabi Oduro , Ebenezer Bonyah

Epidemiological modeling is vital in understanding disease dynamics and guiding public health interventions. This study presents a time-fractional SEIR model to describe the transmission dynamics of Mpox, incorporating memory effects via…

数值分析 · 数学 2026-01-29 Gaurav Saini , Bappa Ghosh , Sunita Chand , Jugal Mohapatra

In this paper, we propose and analyze a new fractional order malaria model with temporary immunity. We extend the existing malaria model to include fractional derivatives. Basic reproduction number is computed using the next generation…

动力系统 · 数学 2016-07-15 E. Okyere , F. T. Oduro , S. K. Amponsah , I. K. Dontwi , N. K. Frempong

We obtain conditions for eradication and permanence of infection for a nonautonomous SIQR model with time-dependent parameters, that are not assumed to be periodic. The incidence is given by functions of all compartments and the threshold…

动力系统 · 数学 2017-01-05 César M. Silva

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

Fractional-order SIR models have become increasingly popular in the literature in recent years, however unlike the standard SIR model, they often lack a derivation from an underlying stochastic process. Here we derive a fractional-order…

种群与进化 · 定量生物学 2016-03-31 Christopher N Angstmann , Bruce I Henry , Anna V McGann

In this paper, we investigate the existence and uniqueness of solution of nonlinear $\psi$-Caputo fractional differential equation with the help of Banach fixed point theorem. Moreover, by using $\psi$-Gronwall inequality, we studied some…

综合数学 · 数学 2021-10-12 Deepak B. Pachpatte , Bhagwat R. Yewale

This article is a comparative study on an initial-boundary value problem for a class of semilinear pseudo-parabolic equations with the fractional Caputo derivative, also called the fractional Sobolev-Galpern type equations. The purpose of…

偏微分方程分析 · 数学 2021-08-18 Huy Tuan Nguyen , Nguyen Anh Tuan , Chao Yang

In this work, we consider a generalization of the nonlinear Langevin equation of fractional orders with boundary value conditions. The existence and uniqueness of solutions are studied by using results of the fixed point theory. Moreover,…

偏微分方程分析 · 数学 2020-04-08 Saeed Kosari , Milad Yadollahzadeh , Zehui Shao , Yongsheng Rao

Over the past several decades there has been a proliferation of epidemiological models with ordinary derivatives replaced by fractional derivatives in an an-hoc manner. These models may be mathematically interesting but their relevance is…

种群与进化 · 定量生物学 2016-03-31 C. N. Angstmann , B. I. Henry , A. V. McGann

The aim of this study to investigate the existence of solutions for the following nonlocal integral boundary value problem of Caputo type fractional differential inclusions. To achieve our goals, we take advantage of fixed point theorems…

经典分析与常微分方程 · 数学 2018-07-17 Hüseyin Işık

Following \cite{ipel1}, we consider a nonlinear SIS-type nonlocal system describing the spread of epidemics on networks, assuming nonlimited transmission, We prove local existence of a unique solution for any diffusion coefficients and…

种群与进化 · 定量生物学 2017-04-11 Elisabeth Logak , Isabelle Passat

This paper studies qualitative properties of solutions of nonlocal infectious SIR epidemic models (1.3)-(1.5), with the homogeneous Neumann boundary conditions, Dirichlet boundary conditions and free boundary, respectively. We first use the…

偏微分方程分析 · 数学 2024-05-21 Hanxiang Bao , Mingxin Wang , Shaowen Yao

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

We propose and study a class of numerical schemes to approximate time fractional differential equations. The methods are based on the approximation of the Caputo fractional derivative by continuous piecewise polynomials, which is strongly…

数值分析 · 数学 2018-05-04 Han Zhou , Paul Andries Zegeling

We study a fractional reaction-diffusion system with two types of variables: activator and inhibitor. The interactions between components are modeled by cubical nonlinearity. Linearization of the system around the homogeneous state provides…

斑图形成与孤子 · 物理学 2007-05-23 V. Gafiychuk , B. Datsko , V. Meleshko

This paper is focused on local and global stability of a fractional-order predator-prey model with habitat complexity constructed in the Caputo sense and corresponding discrete fractional-order system. Mathematical results like positivity…

动力系统 · 数学 2019-06-05 Shuvojit Mondal , Milan Biswas , Nandadulal Bairagi

We discuss the existence of multiple positive solutions for a nonlocal fractional problem recently considered by Nieto and Pimental. Our approach relies on classical fixed point index.

经典分析与常微分方程 · 数学 2021-02-09 Alberto Cabada , Gennaro Infante

We consider a functional semilinear Rayleigh-Stokes equation involving fractional derivative. Our aim is to analyze some circumstances, in those the global solvability and some results on asymptotic behavior of solutions take place. By…

偏微分方程分析 · 数学 2021-03-30 Ke Tran Dinh , Lan Do , Tuan Pham Thanh

Novel criteria for global asymptotic stability of nonlinear uncertain finite-dimensional systems are presented. The results are obtained by a combination of the "discretization approach" and the ideas contained in the proof of the original…

最优化与控制 · 数学 2009-07-24 Iasson Karafyllis