By using a fixed-point theorem of strict-set-contraction, we investigate the existence of positive periodic solutions for a class of the following impulsive neutral Lotka-Volterra system with distributed delays: Some verifiable criteria are established easily.
Zhenguo Luo. Liping Luo. "Existence of Positive Periodic Solutions for Periodic Neutral Lotka-Volterra System with Distributed Delays and Impulses." Int. J. Differ. Equ. 2013 (SI2) 1 - 13, 2013. https://doi.org/10.1155/2013/890281