获得了一类带有连续和分段常数变元的中立型微分方程所有解振动的新的充分条件。

The new sufficient conditions for the oscillation of all solutions of the neutral differential equation with continuous and piecewise constant arguments are obtained.

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目的研究一类具有连续偏差变元的双曲偏泛函微分方程边值问题解的振动性。

Aim To study a class of boundary value problem of hyperbolic partial functional differential equations with continuous deviating arguments.

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通过构造差分方程的周期数列解，研究了一类具有分段常数变元的脉冲微分方程周期解的存在性。

The existence of periodic solutions for a class of impulsive differential equations with piecewise constant argument is studied by constructing periodic sequence solutions of difference equation.

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