AN INSTABILITY THEOREM FOR A KIND OF SEVENTH ORDER NONLINEAR DELAY DIFFERENTIAL EQUATIONS

AN INSTABILITY THEOREM FOR A KIND OF SEVENTH ORDER NONLINEAR DELAY DIFFERENTIAL EQUATIONS

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摘要 This paper considers a kind of seventh order nonlinear differential equations with a deviating argument.By means of the Lyapunov direct method,some sufficient conditions are established to show the instability of the zero solution to the equation.Our result is new and complements the corresponding result of [5]. This paper considers a kind of seventh order nonlinear differential equations with a deviating argument.By means of the Lyapunov direct method,some sufficient conditions are established to show the instability of the zero solution to the equation.Our result is new and complements the corresponding result of [5].

作者 Cemil Tun

机构地区 Dept.of Math.

出处《Annals of Differential Equations》 2012年第1期11-14,共4页 微分方程年刊（英文版）

关键词 INSTABILITY Lyapunov direct method delay differential equation seventh order instability Lyapunov direct method delay differential equation seventh order

分类号 O175.13 [理学—基础数学]

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参考文献9

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Annals of Differential Equations

2012年第1期

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AN INSTABILITY THEOREM FOR A KIND OF SEVENTH ORDER NONLINEAR DELAY DIFFERENTIAL EQUATIONS

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