Persistence And Global Attractivity In The Model A_(n+1) = Qa_n+f_n(a_n,a_(n-1), ... ,a_(n-m)

摘要

First, we prove the uniform persistence for discrete model A_(n+1) = qA_n + F_n(A_n,A_(n-1),... ,A_(n-m)) of population growth, when F_n : (0, ∞)~(m+1) → (0, ∞) is continuous all. Second, we investigation the effect of delay m on the global attractivity of the unique positive equilibrium.