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Positive periodic solutions of functional discrete systems and population models
Advances in Difference Equations volume 2005, Article number: 984976 (2005)
We apply a cone-theoretic fixed point theorem to study the existence of positive periodic solutions of the nonlinear system of functional difference equations x(n+1) = A(n)x(n) + f(n,x n ).
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Raffoul, Y.N., Tisdell, C.C. Positive periodic solutions of functional discrete systems and population models. Adv Differ Equ 2005, 984976 (2005). https://doi.org/10.1155/ADE.2005.369