Numerical Solutions of Fractional Covid-19 Model Using Spectral Collocation Method

บทคัดย่อ

In this work, the mathematical model is considered on COVID-19 which makes the lives of people in the world into a hell. This present model has four components that are expressed as susceptible, exposed, infected and recovered (SEIR). Spectral collocation method (SCM) is presented here for numerical simulations because it is one of the important numerical techniques having a high rate of convergence. Also, convergence analysis of the above method is presented here briefly. There is detailed description about the comparision of the rate of increasing of COVID - 19 of India, Srilanka, Pakistan, Bangladesh respectively. If the four components are considered as zero initially, the effect of population to increase the disease is presented here.