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具有连续时滞和功能性反应的非自治竞争系统的持续生存
引用本文:严建明,张弘,罗桂烈.具有连续时滞和功能性反应的非自治竞争系统的持续生存[J].数学研究,2007,40(2):152-158.
作者姓名:严建明  张弘  罗桂烈
作者单位:1. 湖南财经高等专科学校基础课部,湖南,长沙,410205
2. 江苏大学数学系,江苏,镇江,212013
3. 广西师范大学数学与计算机科学学院,广西,桂林,541004
基金项目:国家自然科学基金;广西自然科学基金青年基金
摘    要:本文利用Lyapunov-Razumikhin理论讨论了具有连续时滞和Ⅱ类功能性反应的非自治扩散竞争系统.此系统有两个种群n个斑块,其中一个种群可以在n个斑块中自由扩散,另一种群被限定在一斑块中不能扩散.当系数满足一定的条件时,证明了系统是持续生存的,此外,给出了该系统的一周期解全局吸引的充分条件.

关 键 词:竞争系统  周期解  持续性  全局吸引性
修稿时间:2004-07-17

Persistence of Nonautonomous Competition System with Continuous Time Delay and Functional Responce
Yan Jianming,Zhang Hong,Luo Guilie.Persistence of Nonautonomous Competition System with Continuous Time Delay and Functional Responce[J].Journal of Mathematical Study,2007,40(2):152-158.
Authors:Yan Jianming  Zhang Hong  Luo Guilie
Institution:1. Dept. of Basic Subject, Hunan College of Finance and Economics Changsha 410205; 2. Dept. of Math. , Jiangsu University, Zhenjiang, Jiangsu 212013; 3. Dept. of Math. and Comp Sci. , Guangxi Normal Univ, Guilin, Guangxi 541004
Abstract:In this paper, a nonautonomous diffusion competition system with continuous time delay and I type functional response is studied by employing the Lyapunov-Razumikhin technique. There are two species and n patches in the system, one of the two species can diffuse between n patches, and the other is confined to one patch. It is proved that the system can be persistent under some conditions. Furthermore, sufficient conditions are established for global attractivity of a periodic solution of the system.
Keywords:Competition system  periodic solution  persistence  global attractivity
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