摘要
研究一类捕食者-食饵系统的正周期解的存在性.利用重合度理论,得到了关于该类系统的正周期解的存在性的新结果,其定理条件比现有结果的条件更为简单,容易验证与应用.
This paper studies the existence of positive periodic solutions to a class of predator-prey system. Using the coincidence degree theory,we obtain a new result on the existence of positive periodic solutions for the system. The conditions of our theory are more simple than that of the current result,and are easily verified and applied.
出处
《泉州师范学院学报》
2004年第6期18-22,44,共6页
Journal of Quanzhou Normal University
基金
国务院侨务办公室科研基金资助项目(01QZR02)
关键词
捕食者——食饵系统
正周期解
重合度理论
predator-prey system
positive periodic solutions
coincidence degree theory
