In the paper, we offer a qualitatively unimprovable oscillation result for half-linear several delay second-order differential equations, which improves and generalizes the one from the very recent study [8]. The sharpness of our newly obtained criterion is illustrated via Euler-type half-linear several delay differential equations.

中文翻译：

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具有多个时滞参数的半线性二阶微分方程的尖锐振动准则

在本文中，我们为半线性几个时滞二阶微分方程提供了定性上不可改善的振动结果，该改进和推广了最近研究的结果[8]。我们新获得的判据的清晰度通过Euler型半线性几个时滞微分方程表示。