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...

Full description

Bibliographic Details
Main Authors: Xingyong Liu, Xiuxiang Liu
Format: Article
Language:English
Published: Texas State University 2012-11-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2012/199/abstr.html