Positive periodic solutions in generalized ratio-dependent predator-prey systems

被引：8
作者：
Ding, Xiaoquan [1 ]
机构：
[1] Shandong Agr Unv, Dept Math & Informat Sci, Tai An 271018, Peoples R China
来源：
NONLINEAR ANALYSIS-REAL WORLD APPLICATIONS | 2008年 / 9卷 / 02期
关键词：
predator-prey system; ratio-dependent; periodic solution; coincidence degree;
D O I：
10.1016/j.nonrwa.2006.11.007
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
By using a continuation theorem based on coincidence degree theory, we establish easily verifiable criteria for the existence of periodic solutions in generalized ratio-dependent predator-prey systems. Some known results are shown to be special cases of the presented paper. (c) 2006 Elsevier Ltd. All rights reserved.
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页码：394 / 402
页数：9
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