具变符号系数的四阶中立型时滞微分方程的振动性 |
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引用本文: | 朱红霞,;郭芳,;郭福日,;韩效宥.具变符号系数的四阶中立型时滞微分方程的振动性[J].雁北师范学院学报,2014(4):7-8. |
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作者姓名: | 朱红霞 ;郭芳 ;郭福日 ;韩效宥 |
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作者单位: | [1]河北廊坊师范学院数学与信息科学学院,河北廊坊065000; [2]山西大同大学数学与计算机科学学院,山西大同037009; [3]北方工业大学理学院,北京00041 |
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基金项目: | 廊坊师范学院校级青年基金项目[LSZQ201002] |
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摘 要: | 当系数q(t)变号时,研究了四阶中立型时滞微分方程y(t)+p(t)y(t-τ)]^(4)+q(t)y(t-τ)=0的振动性,得到该方程振动的一个充分性定理。
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关 键 词: | 时滞 四阶 振动性 |
Oscillation of Fourth Order Neutral Delay Differential Equation with Variable Coefficient |
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Institution: | ZHU Hong-xia, GUO Fang , GUO Fu-ri, HAN Xiao-you (1.College of Mathematics &Information Science, Langfang Teachers University,Langfang Hebei,065000; 2. College of Mathematics & Computer science, Shanxi Datong University, Datong Shanxi, 037009; 3. College of Science, North China University of Technolofy, Beijing, 100041) |
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Abstract: | This paper studies the oscillation of a kind of fourth-order neutral delay differential equationy(t)+p(t)y(t-τ)]^(4)+q(t)y(t-τ)=0, when the coefficient q(t) is variable, and obtained a sufficient condition for the oscillation of this equation. |
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Keywords: | delay fourth order oscillation |
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