International Journal of Mathematics and Mathematical Sciences
Volume 2006 (2006), Issue 5, Pages 63182, 14 p.
doi:10.1155/IJMMS/2006/63182

Existence of positive periodic solutions for delayed predator-prey patch systems with stocking

Hui Fang1 and Zhicheng Wang2

1Faculty of Information Science and Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, Zhejiang, China
2Department of Applied Mathematics, Hunan University, Changsha 410082, China

Abstract

A sufficient condition is derived for the existence of positive periodic solutions for a delayed predator-prey patch system with stocking. Some known results are improved.