具有正负系数的二阶脉冲中立型方程的振动性  

Oscillation Criteria for Second order Impulsive Neutral Differential Equations with Positive and Negative Coefficients

作　　者：张海涛[1] 李金仙[1] 

机构地区：[1]山西大学数学科学学院

出　　处：《数学的实践与认识》2007年第21期184-187,共4页Mathematics in Practice and Theory

基　　金：山西省自然科学基金(2007011001);山西大学青年科技基金(2006019)

摘　　要：考虑一类具有正负系数的多时滞二阶线性脉冲中立型微分方程,证明了该方程解的振动性等价于一类非脉冲中立型方程解的振动性,得到了方程所有解存在的充分条件.Consider a class of second order linear impulsive neutral differential equations with positive and negative coefficients and several delays. It is proved that the oscillation of the impulsive equation is equivalent to that of the corresponding equation without impulses. A sufficient condition for oscillation of the impulsive equation is estblished.

关 键 词：时滞 脉冲微分方程 正负系数 振动 

分 类 号：O175[理学—数学]