| 离散时间的多种群互惠系统正周期解的存在性 |
| |
| 引用本文： | 于丽颖.离散时间的多种群互惠系统正周期解的存在性[J].吉林林学院学报,2011(6):627-631. |
| |
| 作者姓名： | 于丽颖 |
| |
| 作者单位： | 北方工业学校数学教研室,辽宁盘锦124021 |
| |
| 摘 要： | 利用重合度理论中的延拓定理研究了一类具有周期系数和离散时间的多种群差分互惠系统模型,得到了该系统正周期解存在的充分条件,推广并改进了相关结果.
|
| 关 键 词： | 多种群互惠系统 正周期解 差分方程 重合度理论 |
Existence of Positive Periodic Solution for a Discrete Time of Many Species Cooperative System |
| |
| Authors: | YU Li-ying |
| |
| Institution: | YU Li-ying(Mathematics Staff Room of North Technical School,Panjin 124021,China) |
| |
| Abstract: | The existence of positive periodic solution for a discrete time of many species cooperative model governed by difference equations with periodic coefficients is established by using the method of coincidence degree.Particularly,our results generalize and improve some previously known criteria. |
| |
| Keywords: | many species cooperative system positive periodic solutions difference equation coincidence degree theorem |
| 本文献已被 维普 等数据库收录！ |
