Bessel Polynomials: Application in Finding Optimal Solution of Fractional COVID-19 Model Using Lagrange Multipliers
摘要
After the outbreak of coronavirus disease, numerous models have been proposed for it. In this paper, a fractional mathematical model for COVID-19 is introduced. Applying generalized Bessel polynomials, each function in the model is approximated. For minimizing the norm-2 of residual functions, an optimization problem is obtained and this problem is solved using Lagrange multipliers. The numerical results shows that the proposed method has high accuracy and is suitable for solving nonlinear optimization problems and also can help specialists to cure and control Covid-19 disease.