具正负系数的中立型时超泛函微分方程解的振动性

OSCILLATIONS OF SOLUTIONS TO NEUTRAL ADVANCED FUNCTIONAL DIFFRENTIAL EQUATIONS WITH POSITIVE AND NEGATIVE COEFFICIENTS

本文研究了具正负系数的中立型时超泛函微分方程：的振动性问题，获得了方程（＊）式所有解振动的充分条件。

In this papersufficient condition, of the oscillations of solutions to neutral advanced functional differential equations with positive and negative coefficients. for all solutions of the to be oscillatory are obtained.