a mathematical model depicting the spread of covid-19 epidemic and implementation of population covid-19 intervention in Italy The model has 8 components leading to system of 8 ordinary differential equations In this paper, we investigate the model using the concept of fractional differential operator A numerical method based on the Lagrange polynomial was used to solve the system equations depicting the spread of COVID-19 A detailed investigation of stability including reproductive number using the next generation matrix, and the Lyapunov were presented in detail Numerical simulations are depicted for various fractional orders (C) 2020 Elsevier Ltd All rights reserved
A novel mathematics model of covid-19 with fractional derivative. Stability and numerical analysis