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http://dx.doi.org/10.4134/CKMS.2007.22.3.465

PERIODIC SOLUTIONS OF A DISCRETE TIME NON-AUTONOMOUS RATIO-DEPENDENT PREDATOR-PREY SYSTEM WITH CONTROL  

Zeng, Zhijun (ACADEMY OF MATHEMATICS AND SYSTEMS SCIENCES CAS)
Publication Information
Communications of the Korean Mathematical Society / v.22, no.3, 2007 , pp. 465-474 More about this Journal
Abstract
With the help of the coincidence degree and the related continuation theorem, we explore the existence of at least two periodic solutions of a discrete time non-autonomous ratio-dependent predator-prey system with control. Some easily verifiable sufficient criteria are established for the existence of at least two positive periodic solutions.
Keywords
ratio-dependent predator-prey system; nonautonomous difference equations; periodic solution; coincidence degree;
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