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arXiv 1806.03026math.CA
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与Burnside公式有关的Sharp不等式

Sharp inequalities related with Burnside's formula

Necdet Batir

摘要:

我们证明了以下与$n!$的Burnside公式相关的双重不等式\begin{equation*} \sqrt{2π}\left(\frac{n+a_*}{e}\right)^{n+a_*}<n!<\sqrt{2π}\left(\frac{n+a^*}{e}\right)^{n+a^*}\,(n\in\mathbb{N}), \end{equation*},其中常数$a_*=0.428844044...$和$a^*=0.5$是最好的。我们相信,我们在证明中使用的方法,让本科生了解如何简单的不等式可以建立。

英文摘要:

We prove the following double inequality related with Burnside's formula for $n!$ \begin{equation*} \sqrt{2π}\left(\frac{n+a_*}{e}\right)^{n+a_*}<n!<\sqrt{2π}\left(\frac{n+a^*}{e}\right)^{n+a^*}\,(n\in\mathbb{N}), \end{equation*} where the constants $a_*=0.428844044...$ and $a^*=0.5$ are the best possible. We believe that the method we used in the proof gives insight to undergraduate students to understand how simple inequalities can be established.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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