Existence of almost periodic solutions of second order neutral delay differential equations with pie

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由构造几乎周期的顺序答案到差别方程,中立延期的几乎周期的答案的存在有 piecewise 常数争论 $$\\frac 的微分方程{{ d ^ 2 }}{{ dt ^ 2 }}( x (t)+ px ( t - 1 ))= qr\\left ({ 2 \\left [{ \\frac {{ t + 1 }}{ 2 }} \\right ]} \\right )+ g { \\bf {}}( t , x (t), x ([ t ]))$$被学习。
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