Journal of the Chungcheong Mathematical Society (충청수학회지)

The Chungcheong Mathematical Society (충청수학회)
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EXISTENCE OF POSITIVE T-PERIODIC SOLUTIONS OF RATIO-DEPENDENT PREDATOR-PREY SYSTEMS

  • Ryu, Kimun (Department of Mathematics Education Cheongju University)
  • Received : 2021.01.07
  • Accepted : 2021.01.11
  • Published : 2021.02.15
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Abstract

We study the existence of positive T-periodic solutions of ratio-dependent predator-prey systems with time periodic and spatially dependent coefficients. The fixed point theorem by H. Amann is used to obtain necessary and sufficient conditions for the existence of positive T-periodic solutions.

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References

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