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脉冲多时滞差分方程的振动性

2018-09-10葛礼霞季丹丹刘海明

葛礼霞 季丹丹 刘海明

摘 要:研究具有脉冲的多时滞差分方程,通过构造辅助函数,借助于反证法、单调有界原理及函数的连续性,得到了方程振动的两个充分条件,将某些结论在脉冲和多时滞的条件下进行改进和推广,使其应用更加广泛.

关键词:连续变量;脉冲时滞差分方程;振动性

[中图分类号]O175.7 [文献标志码]A

文章编号:1003-6180(2018)02-0026-04

Abstract:In this paper,it is considered that the impulsive several delays difference equation, It is used the method of constructing auxiliary function, With the help of the absurdity、monotone of Function, the two sufficient conditions are obtained for ocillation of all solutions and some results of impulsive and several delays are improved and promoted. The results are more widely available.

Key words:continuous arguments;impulsive delay difference equation;oscillation

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