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arXiv 2005.08945math.CA
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$q-$伽玛函数和$q-$双Γ函数的调和平均不等式

A harmonic mean inequality for the $q-$gamma and $q-$digamma functions

Mohamed Bouali

摘要:

我们证明了对于任意的$x > 0$和$q\in J$,$Γ_q(x)$和$Γ_q(1/x)$的调和平均大于或等于$1$,其中$J$是$[0,+\infty)$的子集.此外,我们证明了,对于有$p_0\in(1,9/2)$,使得对于$q\in(0,p_0)$,$ψ_q(1)$是$ψ_q(x)$和$ψ_q(1/x)$的调和平均的最小值,对于$x > 0$和$q\in(p_0,+\infty)$,$ψ_q(1)$是最大值。我们的结果推广了Alzer和Gautschi的一些已知不等式。

英文摘要:

We prove amongs others results that the harmonic mean of $Γ_q(x)$ and $Γ_q(1/x)$ is greater than or equal to $1$ for arbitrary $x > 0$ and $q\in J$ where $J$ is a subset of $[0,+\infty)$. Also, we prove that for there is $p_0\in(1,9/2)$, such that for $q\in(0,p_0)$, $ψ_q(1)$ is the minimum of the harmonic mean of $ψ_q(x)$ and $ψ_q(1/x)$ for $x > 0$ and for $q\in(p_0,+\infty)$, $ψ_q(1)$ is the maximum. Our results generalize some known inequalities due to Alzer and Gautschi.

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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