二阶中立型时滞微分方程的振动性

摘要

研究了一类具有正负变系数的二阶中立型时滞微分方程的振动性,得到了在不同条件下方程振动的若干振动准则,最后举例对主要结果进行了论证.%This paper studies the oscillation for one kind of second-order neutral delay differential e- quation with variable positive and negative coefficients, and several oscillation criteria about the equation for different conditions are obtained. And some examples are considered to illustrate the main results.