Modeling and numerical analysis of a fractional order model for dual variants of SARS-CoV-2

Bibliographic Details
Title: Modeling and numerical analysis of a fractional order model for dual variants of SARS-CoV-2
Authors: Peijiang Liu, Xiangxiang Huang, Rahat Zarin, Ting Cui, Anwarud Din
Source: Alexandria Engineering Journal, Vol 65, Iss , Pp 427-442 (2023)
Publisher Information: Elsevier, 2023.
Publication Year: 2023
Collection: LCC:Engineering (General). Civil engineering (General)
Subject Terms: SARS-CoV-2, Dual variants, Fractional model, Newton’s polynomial, Iterative scheme, Asymptotic behavior, Engineering (General). Civil engineering (General), TA1-2040
More Details: This paper considers the novel fractional-order operator developed by Atangana-Baleanu for transmission dynamics of the SARS-CoV-2 epidemic. Assuming the importance of the non-local Atangana-Baleanu fractional-order approach, the transmission mechanism of SARS-CoV-2 has been investigated while taking into account different phases of infection and various transmission routes of the disease. To conduct the proposed study, first of all, we shall formulate the model by using the classical operator of ordinary derivatives. We utilize the fractional order derivative and the model will be extended to a model containing fractional order derivatives. The operator being used is the fractional differential operator and has fractional order Φ1. The model is analyzed further and some basic aspects of the model are investigated besides calculating the basic reproduction number and the possible equilibria of the proposed model. The equilibria of the model are examined for stability purposes and necessary conditions for stability are obtained. Stability is also necessary in terms of numerical setup. The theory of non-linear functional analysis is employed and Ulam-Hyers’s stability of the model is presented. The approach of newton’s polynomial is considered and a new numerical scheme is developed which helped in presenting an iterative process for the proposed ABC system. Based on this scheme, sample curves are obtained for various values of Φ1 and a pattern is derived between the dynamics of the infection and the order of the derivative. Further simulations are presented which show the cruciality and importance of various parameters and the impact of such parameters on the dynamics and control of the disease is presented. The findings of this study will also provide strong conceptual insights into the mechanisms of contagious diseases, assisting global professionals in developing control policies.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1110-0168
Relation: http://www.sciencedirect.com/science/article/pii/S1110016822006810; https://doaj.org/toc/1110-0168
DOI: 10.1016/j.aej.2022.10.025
Access URL: https://doaj.org/article/40248fea03ba4e6cbf08d0e08cc20671
Accession Number: edsdoj.40248fea03ba4e6cbf08d0e08cc20671
Database: Directory of Open Access Journals
More Details
ISSN:11100168
DOI:10.1016/j.aej.2022.10.025
Published in:Alexandria Engineering Journal
Language:English