a mathematical model for outbreak of covid-19 from the perspective of numerical analysis

In this paper we developed a smsleirsl epidemic model for covid- 19by using compartmental analysis. in our model, we divided the category of susceptibleindividuals as the union of two different compartment: that of higher-risk individualsand the compartment of lesser-risk individuals. in this work, after obtaining some basicproperties of the model such as positivity and boundedness of the solutions, diseasefree equilibrium point, endemic equilibrium point, calculation of the basic reproductionnumber, expressing theorems about local and global stability, finally we have gone tothe sensitivity analysis and numerical analysis