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The qualitative analysis of $$N$$-species periodic coefficient, nonlinear relation, prey-competition systems. (Chinese. English summary) Zbl 0880.34042
Summary: We use the comparing theorem, Brouwer’s fixed point theorem and the V-function method to discuss the ultimate boundedness of positive solutions and the existence and global attractivity of a positive periodic solution of $$N$$-species periodic coefficient, nonlinear relation, prey-competition systems.

##### MSC:
 34C25 Periodic solutions to ordinary differential equations 92D25 Population dynamics (general)