Existence of positive periodic solutions of nonlinear discrete model exhibiting the Allee effect

摘要

In this paper we shall consider the discrete nonlinear delay population model with Allee effectwhere a(n), b(n) and c(n) are positive sequences of period ω and p and q are positive integers. By using the coincidence degree theorem as well as some priori estimates we will establish a sufficient condition for the existence of positive periodic solution .