Established a linearized oscillation result of the second order nonlinear neutral delay differential equation with positive and negative coefficients.
建立了二阶具正负系数的非线性中立型微分方程的一个线性化振动性结果。
The monotone iterative techniques is used to investigate the existence of extremal solution of periodic boundary value problems (PBVP) for neutral delay differential equation.
利用单调迭代方法给出了中立型滞后微分方程的周期边值问题极解的存在性定理。
Considering a kind of neutral delay differential equations, a sufficient condition for the oscillation of all solutions of neutral delay differential equation in critical state is obtained.
讨论了一类中立型时滞微分方程所有解的振动性，获得了临界状态下该方程所有解振动的一个充分条件。
The second chapter discusses and proves the existence and uniqueness of periodic solutions and stability of a neutral integral and differential equation with infinite delay in detail.
第二章详细论证了一类具有无穷时滞中立型积分微分方程周期解的存在唯一性和稳定性。
The neutral delay nonlinear hyperbolic differential equation is considered. A sufficient condition for the oscillation on the equations is obtained.
考虑一类中立型时滞双曲微分方程，得到了该方程振动的一个充分条件。
To study the oscillatory of solutions to a class of nonlinear neutral hyperbolic differential equation with continuous distributed delay.
研究一类具有连续分布滞量的非线性中立型双曲方程解的振动性质。
To study the oscillatory of solutions to a class of nonlinear neutral hyperbolic differential equation with continuous distributed delay.
研究一类具有连续分布滞量的非线性中立型双曲方程解的振动性质。
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