数学物理学报 ›› 1998, Vol. 18 ›› Issue (2): 169-175.

• 论文 • 上一篇    下一篇

周期二维Lotka-Volterra系统的一些新结果

膝志东   

  1. 新疆大学数学系 乌鲁木齐 830046
  • 收稿日期:1996-05-20 修回日期:1997-04-22 出版日期:1998-06-26 发布日期:1998-06-26

Some new Results of two Dimensional Periodic Lotka-Volterra Systems

Teng Zhidong   

  1. Department of Mathmatics, Xinjiang University, Urumqi 830046
  • Received:1996-05-20 Revised:1997-04-22 Online:1998-06-26 Published:1998-06-26

摘要: 该文研究周期二维Lotka-Volterra捕食食饵系统解的有界性,持续生存性以及正周期解的存在性和全局稳定性.并将结果推广到食饵有补充的周期二维Lotka-Volterra竞争系统上去,得到了一系列新的结果,改进和推广了文[1-3]的主要结论.

关键词: 周期环境, Lotka-Volterra系统, 有界性, 持续生存性, 正周期解, 全局稳定性

Abstract: In this paper, we study the boundedness and persistence of solutions and the existence and global stability of positive periodic solution for two dimensional periodic Lotka-Volterra predator-prey systems. Afterwards, we extend the obtained results to two dimensional periodic Lotka-Volterra predator-prey systems with prey supplement and two dimensional periodic Lotka-Volterra competition systems. A series of new cirteria are obtained. The main results in[1-3]are improved and extended.

Key words: Periodic environment, Lotka-Volterra system, Borndedness, Persistence, Positive periodic solution, Global statility