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二阶强迫非线性时滞差分方程振动的充要条件

Necessary and Sufficient Conditions for the Oscillation of the Second Order Forced Nonlinear Delay Difference Equations
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摘要 给出了二阶强迫非线性时滞差分方程 ?2xn + anf(xn ) = gn 的所有解弱振动的一个充要条 ?k 件。 A necessary and su?cient condition is given for the weak oscillation of all solutions of the second order forced nonlinear delay di?erence equations ?2xn + anf(xn ) = gn. ?k
作者 孙元功
出处 《工程数学学报》 CSCD 北大核心 2005年第1期151-154,共4页 Chinese Journal of Engineering Mathematics
基金 曲阜师范大学科研基金(XJ02001).
关键词 振动 弱振动 强迫差分方程 时滞 oscillation weakly oscillation forced difference equations delay
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参考文献8

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