Wang An
Abstract
This paper investigates a delay SIR periodic model with vaccination and constant input.By using the comparison theorem in impulsive differential equation,we obtain some sufficient conditions for global attractivity of the infection-free periodic solution and uniform persistence of the disease.
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This paper investigates a delay SIR periodic model with vaccination and constant input.By using the comparison theorem in impulsive differential equation,we obtain some sufficient conditions for global attractivity of the infection-free periodic solution and uniform persistence of the disease.
Key concepts: Constant (computer programming), Epidemic model, Comparison theorem, Mathematics, Delay differential equation, Applied mathematics, Differential equation, Vaccination