J4 ›› 2012, Vol. 50 ›› Issue (4): 633-637.

• 数学 • 上一篇    下一篇

具生物控制的非自治多种群互惠系统的全局吸引性

白萍, 王治民   

  1. 1. 北京师范大学 数学科学学院, 北京 100875|2. 赤峰学院 数学与统计学院, 内蒙古 赤峰 024000)
  • 收稿日期:2011-12-31 出版日期:2012-07-01 发布日期:2012-09-07
  • 通讯作者: 白萍 E-mail:bp113@sohu.com

Global Attractivity of Nonautonomos Multiple Species Cooperative System with Biocontrols

BAI Ping, WANG Zhi-min   

  1. College of Basic Science, Changchun University of Technology, Changchun 130012, China
  • Received:2011-12-31 Online:2012-07-01 Published:2012-09-07
  • Contact: BAI Ping E-mail:bp113@sohu.com

摘要:

 考虑一类具有时滞和生物控制的非自治多种群Lotka-Volterra互惠系统, 利用微分方程比较定理和重合度理论中的延拓定理, 通过构造适当的Lyapunov泛函, 得到了一组保证系统持久性和正周期解全局吸引的充分条件.

关键词: 互惠系统, 生物控制, 持久性, 正周期解, 全局吸引性

Abstract:

 A non-autonomous multiple species Lotka-Volterra cooperative system with delayed biocontrols was investigated. With the aid of comparability theorem, constructing Lyapunov function and continuation theorem, a set of easily verifiable sufficient conditions were obtained to guarantee the permanent and positive periodic solution to be global attractivity of the system.

Key words: cooperative system, biocontrol, permanent, positive periodic solution, global attractivity

中图分类号: 

  • O175.14