Existence of positive periodic solutions of an SEIR model with periodic coefficients
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An SEIR model with periodic coefficients in epidemiology is considered. The global existence of periodic solutions with strictly positive components for this model is established by using the method of coincidence degree. Furthermore, a sufficient condition for the global stability of this model is obtained. An example based on the transmission of respiratory syncytial virus (RSV) is included.
Keywordsepidemic model coincidence degree Fredholm mapping
MSC 201034C25 54H25 92D30
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