Although lockdown of the industrial and transport sector and stay at home advisories to
counter the COVID-19 pandemic have shown that the air quality has improved during this …

The world has been facing the biggest virological invasion in the form of Covid-19 pandemic
since the beginning of the year 2020. In this paper, we consider a deterministic epidemic …

In 2019, a new infectious disease called pandemic COVID-19 began to spread from Wuhan,
China. In spite of the efforts to stop the disease, being out of the control of the governments it …

The Covid-19 pandemic has put the world under immeasurable stress. There is no specific
drug or vaccine till now that can cure the infection or protect people from the infection of …

Novel coronavirus has altered the socio-economic condition of the whole world through its
devastating effects on the human population. Mathematical models and computation …

Aspirations to slow down the spread of novel Coronavirus (COVID-19) resulted in
unprecedented restrictions on personal and work-related travels in various nations across …

A massive vaccination programme against COVID-19 infection started at the beginning of
2021. Studies show that vaccinated people are subject to reinfection, and there is …

Disease Dynamics and Its Optimal Control Page 1 Disease Dynamics and Its Optimal
Control Thesis submitted for the award of the degree of Doctor of Philosophy by …

The COVID-19 pandemic caused by the Severe Acute Respiratory Syndrome Coronavirus 2
(SARS–CoV-2) created significant changes beyond the health sector, all over the world …

To evaluate the present situation concerning the epidemic trend associated with the COVID-
19 in Indian demography, the dynamics of the case rise has been analyzed from the …