KCI등재
학술저널
EXISTENCE OF POSITIVE T-PERIODIC SOLUTIONS OF RATIO-DEPENDENT PREDATOR-PREY SYSTEMS
- Kimun Ryu
- 충청수학회
- Journal of the Chungcheong Mathematical Society
- Volume 34, No. 1
- 등재여부 : KCI등재
- 2021.02
- 27 - 35 (9 pages)
We study the existence of positive T-periodic solutions of ratio-dependent predator-prey systems with time periodic and spatially dependent coecients. The xed point theorem by H. Amann is used to obtain necessary and sucient conditions for the existence of positive T-periodic solutions.
1. Introduction
2. Preliminaries
3. Existence of periodic positive solutions