用分析的方法,在中立项满足多种条件时,全面定性地研究了一类中立型微分方程解的渐近性;用类比的方法,引入变换将方程转化为时滞或时超不等式,获得了这一类方程随滞量不同的多个振动准则.
By using the analytical method, a comprehensively qualitative study on the asymptotic behavior of solution for a class of neutral differential equations is made, when the neutral term is satisfied with a variety of conditions. With the analog method and some transformations, the equation is transformed into delay or super-hour inequalities, and many oscillatory criterions with the delay of the type of differential equation are obtained.