具有连续变量的变系数脉冲时滞差分方程的振动性  

Oscillation for impulsive delay difference equations with continuous arguments

作　　者：钟晓珠[1] 葛礼霞[1] 郑允利[1] 张涛[1] 孙静[1] 

机构地区：[1]燕山大学理学院,河北秦皇岛066004

出　　处：《燕山大学学报》2006年第6期477-479,509,共4页Journal of Yanshan University

摘　　要：给出了具有连续变量的变系数脉冲时滞差分方程{y(t)-y(t-τ)+p(t-σ)=0,t≠t_k y(t^+_k)-y(t_k)=b_ky(t_k),t=t_k k=1,2,…所有解振动的充分条件,推广和改进了已有的结果。In this paper, the following impulsive delay difference equation with continuous arguments is considered {y（t）-y（t-τ）＋p（t）y（t-σ）=0,t≠tk y（tk^＋）-y（tk）=bky（tk）,t=tk,k=1,2,…The sufficient conditions are obtained for scillation of all solutions and some results in the literatures are improved.

关 键 词：连续变量 脉冲时滞差分方程 振动性 

分 类 号：O175.7[理学—数学]