ABSTRACT
The novel coronavirus which emerged at the end of the year 2019 has made a huge impact on the population in all parts of the world. The causes of the outbreak of this deadliest virus in human beings are not yet known to the full extent. In this paper, an investigation is carried out for a new convergent solution of the time-fractional coronavirus model and a reliable homotopy perturbation transform method (HPTM) is used to explore the possible solution. In the presented model, the Atangana-Baleanu derivative in the Liouville-Caputo sense is used. The variations of the susceptible, the exposed, the infected, the quarantined susceptible (isolated and exposed), the hospitalized and the recovered population with time are presented through figures and are further discussed. The effects of selected parameters on the population with the time are also shown through figures. The convergence of solution by the HPTM is shown through tables. The results reveal that the HPTM is efficient, systematic, very effective, and easy to use in getting a solution to this new time-fractional mathematical model of coronavirus disease.
ABSTRACT
In this article, we analyze and identify the optimum values for a deeper sense of the mathematical model of the COVID-19 epidemic from the reservoir to humans by using a powerful fractional homotopy perturbation transform method with Caputo–Fabrizio fractional derivative. We receive simulations of this propagation under high parameters. Although the results show the efficacy of the theoretic framework considered for the governing structure. The obtained results also provide lighting on the dynamic behavior of the COVID-19 model. We gave a few numerical approximations to explain the efficiency of the proposed method for various values of fractional order, which correspond to the process. Finally, we graphically demonstrate the obtained outcome. [ FROM AUTHOR] Copyright of Waves in Random & Complex Media is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full . (Copyright applies to all s.)
ABSTRACT
This article views the COVID-19 pandemic as an opportunity leading to a significant reduction in pollution levels, clean waters in rivers, improved visibility, and other tangible benefit to humanity and the environment. In Post-COVID scenario, to restore the margins and regain the lost production, industries are likely to increase their production leading to a quantum jump in the pollution levels. Having precedence of such a scenario in 2008-09, this article looks at what are the possible avenues to engage the city government and business houses through an a new normal ECO-BCP concept for long term sustainability. All economic stimulus needs to be tied down with the stringent reduction in the emission norms. The Ten Principles for the Eco-centric BCP guide the reopening of MSMEs after lockdown period called to check the spread of the COVID-19 pandemic. The Eco-centric BCP model will help the MSMEs to adopt the new-normal business strategies to align with the country-specific commitments to SDGs, SFDRR and Paris declaration.