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首页> 外文期刊>Northeastern mathematical journal >The Existence of Almost Periodic Solutions of Second Order Neutral Differential Equations With Piecewise Constant Argument
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The Existence of Almost Periodic Solutions of Second Order Neutral Differential Equations With Piecewise Constant Argument

机译:具有分段常数变元的二阶中立型微分方程概周期解的存在性。

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摘要

In this paper, we consider the following neutral functional differential equation with piecewise constant argument: d~2/dt~2(x(t)+px(t-1))=qx(2[~t+1/2])+g(t,x(t),x([t])), d~2/dt~2(x(t)+p(t)x(t-1))=qx(2[~t+1/2])+g(t,x(t),x([t])). By constructing almost periodic sequence solution for difference equation and using the fixed Point theorem, we get the existence of almost periodic solutions for these equations.
机译:在本文中,我们考虑以下具有分段常数参数的中立型泛函微分方程:d〜2 / dt〜2(x(t)+ px(t-1))= qx(2 [〜t + 1/2]) + g(t,x(t),x([t])),d〜2 / dt〜2(x(t)+ p(t)x(t-1))= qx(2 [〜t + 1/2])+ g(t,x(t),x([t]))。通过构造差分方程的几乎周期解并使用不动点定理,我们得到了这些方程的几乎周期解的存在。

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