| 一类时滞种群模型的周期正解 |
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| 引用本文： | 黄永明,曹进德.一类时滞种群模型的周期正解[J].纯粹数学与应用数学,1999,15(1):68-71. |
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| 作者姓名： | 黄永明 曹进德 |
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| 作者单位： | 1. 云南教育学院数理分院,昆明,650031
2. 云南大学成人教育学院,昆明,650091 |
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| 摘 要： | 利用一些分析技巧和重合度理论，研究了一类时滞种群模型：Ｎ’（ｔ）＝Ｎ（ｔ）「ｂ（ｔ）－∞／∑／ｊ＝１ａｊｌｎＮ（ｔ＝ｒｊ）」周期正解的存在性，得到了一些新的判据，同时也改进了一些相关文献的结果。
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| 关 键 词： | 时滞种群模型 周期正解 重合度 |
| 修稿时间： | 1998-08-31 |
POSITIVE PERIODIC SOLUTIONS OF A DELAYED MODEL IN POPULATION |
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| Huang Yongming,Cao Jinde.POSITIVE PERIODIC SOLUTIONS OF A DELAYED MODEL IN POPULATION[J].Pure and Applied Mathematics,1999,15(1):68-71. |
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| Authors: | Huang Yongming Cao Jinde |
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| Institution: | Huang Yongming
(Department of Mathematics, Yunnan Education College, Kunming, 650031)Cao Jinde
(Adult Education College, Yunnan University, Kunming, 650091) |
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| Abstract: | In this paper, by using of some new techniques and theory of coincidence degree, the existence of positive periodic solution of a class of delayed model in population of the from N＇(t)=N(t)b(t)-∞∑i=1 ai InN(t-ti)]is studied. A new result is obtained, and the results related to references are ira-proved. |
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| Keywords: | delayed model in population l positive periodic solution coincidence degree |
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