Khalid Hattaf – de nouvelles recherches associées

[PDF] NUMERICAL STUDY FOR FRACTIONAL BI-MODAL 2019-nCOV SITR EPIDEMIC MODEL

SS ALZAID, RP CHAUHAN, S KUMAR… – Fractals, 2022

Currently, the entire planet is suffering from a contagious epidemic infection, 2019- nCOV due to newly detected coronavirus. This is a lethal infectious virus that has destroyed thousands of lives all over the world. The important aim of this study is to …

Dynamical behavior of a stochastic SIQR epidemic model with Ornstein–Uhlenbeck process and standard incidence rate after dimensionality reduction

Y Zhou, D Jiang – Communications in Nonlinear Science and Numerical …, 2022

Due to the continuous interference of environmental white noise, the dynamical behaviors of a stochastic SIQR epidemic model with mean-reverting Ornstein– Uhlenbeck process and standard incidence are considered. Several conclusions can …

[PDF] Determining the global threshold of an epidemic model with general interference function and high-order perturbation

Y Sabbar, A Khan, A Din, D Kiouach, SP Rajasekar – AIMS Mathematics, 2022

This research provides an improved theoretical framework of the Kermack- McKendrick system. By considering the general interference function and the polynomial perturbation, we give the sharp threshold between two situations: the …

[HTML] Investigation of time-fractional mathematical model of COVID-19 with nonsingular kernel

A Adnan, A Ali – Arab Journal of Basic and Applied Sciences, 2022

In this article, a mathematical model of COVID-19 is investigated using the Atangana– Baleanu in sense of Caputo fractional operator. Mathematical analysis and modeling has led the results (allow policymakers to understand and predicts the dynamics of …

[PDF] On Study of Modified Caputo–Fabrizio Omicron Type COVID-19 Fractional Model

KS Albalawi, I Alazman – Fractal and Fractional, 2022

In this paper, we analyze the novel type of COVID-19 caused by the Omicron virus under a new operator of fractional order modified by Caputo–Fabrizio. The whole compartment is chosen in the sense of the said operator. For simplicity, the model is …

[PDF] EFFECT OF TREATMENT AND PROTECTION MEASURES ON THE OUTBREAK OF INFECTIOUS DISEASE USING AN SIR EPIDEMIC MODEL WITH TWO DELAYS …

MA MENOUER, N GUL, S DJILALI, A ZEB, ZA KHAN – Fractals, 2022

In this paper, we aim to analyze the effect of treatment and protection measures on the spread of infectious disease. Therefore, we formulate a delayed mathematical which contains a discrete delay which stands for the duration of protection and …

[HTML] Optimal control for a multi-group reaction–diffusion SIR model with heterogeneous incidence rates

M Mehdaoui, AL Alaoui, M Tilioua – International Journal of Dynamics and Control, 2022

This paper is devoted to the study of an optimal control problem for a generalized multi-group reaction–diffusion SIR epidemic model, with heterogeneous nonlinear incidence rates. The proposed model incorporates a wide range of spatiotemporal …

[PDF] New Numerical Approach of Solving Highly Nonlinear Fractional Partial Differential Equations via Fractional Novel Analytical Method

M Sultana, U Arshad, AH Abdel-Aty, A Akgül… – Fractal and Fractional, 2022

In this work, the fractional novel analytic method (FNAM) is successfully implemented on some well-known, strongly nonlinear fractional partial differential equations (NFPDEs), and the results show the approach’s efficiency. The main purpose is to …

[PDF] Stability analysis of an SEIS epidemic model with nonlinear incidence functional and immigration

S Soulaimani, A Kaddar – Commun. Math. Biol. Neurosci., 2022

In this research, we propose an SEIS epidemic model with immigration and nonlinear incidence rates, considering the impact of infectious forces in both the latent and infected periods. The local dynamics of an endemic equilibrium is …

[PDF] Generalized conformable fractional Newton-type method for solving nonlinear systems

G Candelario, A Cordero, JR Torregrosa, MP Vassileva – 2022

In a recent paper, a conformable fractional Newton-type method was proposed for solving nonlinear equations. This method involves a lower computational cost compared to others fractional iterative methods. Indeed, the theoretical order of …