| 一类具非线性密度制约的时滞周期脉冲Logistic系统正周期解的存在性 |
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| 引用本文： | 梁志清,冯瑜.一类具非线性密度制约的时滞周期脉冲Logistic系统正周期解的存在性[J].信阳师范学院学报(自然科学版),2006,19(1):6-9. |
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| 作者姓名： | 梁志清 冯瑜 |
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| 作者单位： | 玉林师范学院,数学与计算科学系,广西,玉林,537000 |
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| 摘 要： | 利用重合度理论中的延拓定理,研究一类具非线性密度制约的时滞周期脉冲Logistic系统,获得了易验证的系统至少存在一个正周期解的充分条件.
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| 关 键 词： | 周期解 脉冲 重合度 Logistic系统 |
| 文章编号： | 1003-0972（2006）01-0006-04 |
| 收稿时间： | 2005-05-25 |
| 修稿时间： | 2005年5月25日 |
Existence of Positive Periodic Solution for a Delay Periodic Impulsive Logistic System with Nonlinear Density Dependence |
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| Zhi-qing LIANG,Yu FENG.Existence of Positive Periodic Solution for a Delay Periodic Impulsive Logistic System with Nonlinear Density Dependence[J].Journal of Xinyang Teachers College(Natural Science Edition),2006,19(1):6-9. |
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| Authors: | Zhi-qing LIANG Yu FENG |
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| Institution: | Dept. of Math. and Comp. Science, Yulin Normal University, Yulin 537000, China |
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| Abstract: | A delay periodic impulsive logistic system with nonlinear density dependence is investigated.By apply-ing the continuous theorem of coincidence degree theory,a set of easily verifiable sufficient conditions are obtained forthe existence of at least one strictly positive periodic solution. |
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| Keywords: | periodic solution impulsive coincidence degree Logistic system |
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