奇数阶中立型时滞微分方程的振动性

OSCILLATION FOR THE ODD-ORDER NEUTRAL DELAY DIFFERENTIAL EQUATION

考虑奇数阶中立型非线性微分方程：（ｘ（ｔ）－Ｐ（ｔ）ｇ（ｘ（ｔ－τ）））＋Ｑ（ｔ）ｈ（ｘ（ｔ－σ））＝０在允许Ｐ（ｔ）振动的条件下给出了该方程的所有解振动的一个新的充分条件。

Consider the odd-order nonlinear neutral equation(x(t)-P(t)g(x(t-τ)))+Q(t)h(x(t-σ))=0A new sufficient condition for the oscillation of this equation is established when P(t)is allowed to oscillate.