Necessary and sufficient conditions for the existence of periodic solutions in a predator-prey model on time scales
This article explores the existence of periodic solutions for non-autonomous impulsive semi-ratio-dependent predator-prey systems on time scales. Based on a continuous theorem in coincidence degree theory, sharp sufficient and necessary conditions are derived in which most popular monotonic, non...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
Texas State University
2012-11-01
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Series: | Electronic Journal of Differential Equations |
Subjects: | |
Online Access: | http://ejde.math.txstate.edu/Volumes/2012/199/abstr.html |