二阶中立型微分差分方程有界解的振动性

Oscillations for Bounded Solutions of Second Order Neutral Differential Difference Equations

建立了一类二阶中立型微分差分方程有界解振动的充分条件，且当变系数都是常数时，该条件也是必要的；同时，根据该方程的“极限”方程建立了它自身的一个有界振动准则．

A sufficient condition for the oscillation of bounded solutions of a kind of second order neutral differential difference equations established.The condition is necessary when variable coefficients are constants.Besides,based on its limit equation a bounded oscillatory criterion of the equation is established.