| 一类具有正负系数中立型方程振动的充要条件 |
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| 引用本文： | 钟守铭.一类具有正负系数中立型方程振动的充要条件[J].电子科技大学学报(社会科学版),1991(2). |
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| 作者姓名： | 钟守铭 |
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| 作者单位： | 电子科技大学应用数学系 |
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| 摘 要： | 研究了一类具有正负系数的中立型方程的振动性,获得了方程的解振动的充分必要条件的简便代数判据,也获得了容易实现的解振动的充分性判据,改进并推广了文献2,4,9]的相应结果。
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| 关 键 词： | 中立型方程 振动性 正系数 负系数 充要条件 |
THE NECESSARY AND SUFFICIENT CONDITION OF OSCILLATIONS OF NEUTRAL DELAY EQUATIONS WITH POSITIVE AND NEGATIVE COEFFICIENTS |
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| Zhong Shouming.THE NECESSARY AND SUFFICIENT CONDITION OF OSCILLATIONS OF NEUTRAL DELAY EQUATIONS WITH POSITIVE AND NEGATIVE COEFFICIENTS[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),1991(2). |
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| Authors: | Zhong Shouming |
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| Institution: | Dept.of Applied Mathematics |
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| Abstract: | This paper studies the oscillations of first order neutral delay differential equa-tions with both positive and negative coefficients.Some necessary and sufficient condition forall solutions of equation to be oscillatory are obtained,and simple criterion for sufficient condi-tion of oscillations is given Theorems will be an improvement on references2,4,9]. |
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| Keywords: | neutral equation oscillation positive coefficient negative coefficient necessary and sufficient condition |
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