| 一类变时滞差分方程的振动性 |
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| 引用本文： | 谭琼华,陈明. 一类变时滞差分方程的振动性[J]. 数学季刊, 2009, 24(1) |
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| 作者姓名： | 谭琼华 陈明 |
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| 作者单位： | |
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| 摘 要： | Consider the nonautonomous delay logistic equation △yn=pnyn(1-n≥0 (1)where {pn}n≥0 is a sequence of nonnegative real numbers, {ln}n≥0 is a sequence of positive integers satisfying lim (n-ln)=∞, and k is a positive constant. Only solutions which are positive for n ≥ 0 are considered. We obtain a new sufficient for all positive solutions of (1) to oscillate about k which contains the corresponding result in [2] when I=1.
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| 关 键 词： | 时滞Logistic方程 差分方程 振荡 变时滞 光合速率 非自治 正整数 序列 |
Oscillation in a Variable Delay Logistic Difference Equation |
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| TAN Qiong-hua CHEN Ming. Oscillation in a Variable Delay Logistic Difference Equation[J]. Chinese Quarterly Journal of Mathematics, 2009, 24(1) |
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| Authors: | TAN Qiong-hua CHEN Ming |
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| Affiliation: | [1]Department of Mathematics, Central South University, Changsha 410075, China [2]School of Mathematics and Physics, Nanhua University, Hengyang 421001, China |
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| Abstract: | |
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| Keywords: | variable delay Logistic difference equation positive solution oscillation |
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