New Results on Periodic Solutions of Delayed Nicholson’s Blowflies Models
نویسندگان
چکیده
This paper is concerned with a class of Nicholson’s blowflies models with a nonlinear density-dependent mortality term. We use coincidence degree theory and give several sufficient conditions which guarantee the existence of positive periodic solutions of the model. Moreover, we give an example to illustrate our main results.
منابع مشابه
Positive Periodic Solutions of Delayed Nicholson’s Blowflies Model with a Linear Harvesting Term*
This paper is concerned with a class of Nicholson’s blowflies model with a linear harvesting term. By applying the method of coincidence degree, some criteria are established for the existence and uniqueness of positive periodic solutions of the model. Moreover, an example is employed to illustrate the main results.
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