Analytic solution of the SEIR epidemic model via asymptotic approximant
Steven J Weinstein1,2, Morgan S Holland1, Kelly E Rogers1
1School of Mathematical Sciences, Rochester Institute of Technology, Rochester, NY 14623, USA.
Abstract:
An analytic solution is obtained to the SEIR Epidemic Model. The solution is created by constructing a single second-order nonlinear differential equation in and analytically continuing its divergent power series solution such that it matches the correct long-time exponential damping of the epidemic model. This is achieved through an asymptotic approximant (Barlow et al., 2017) in the form of a modified symmetric Padé approximant that incorporates this damping. The utility of the analytical form is demonstrated through its application to the COVID-19 pandemic.
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