| 摘要: |
| 通过引用重合度定理,给出具有HollingⅡ型功能反应函数的三种群比率依赖的捕食者-食饵模型至少存在一个正周期解的充分条件. |
| 关键词: 捕食-食饵模型 周期解 HollingⅡ功能反应函数 重合度定理 |
| DOI： |
| 投稿时间：2011-10-31修订日期：2011-12-06 |
| 基金项目: |
|
| The Existence of Periodic Solution for a Predator-prey System with Holling Type Ⅱ Functional Response |
|
YANG Qi-qun
|
| (Education and Management Department of Guilin Normal College, Guilin, Guangxi, 541002, China) |
| Abstract: |
| Sufficient conditions for existing at least one positive periodic solution of a class of ratio-dependent predator-prey system with Holling type Ⅱ functional response are established by using the coincidence degree theory. |
| Key words: predator-prey system periodic solution Holling type Ⅱ functional response coincidence degree theory |
