A note on the Irrationality of $ζ(5)$ and Higher Odd Zeta Values

Shekhar Suman
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引用次数: 0

Abstract

For $n\in\mathbb{N}$ we define a double integral \begin{equation*} I_n=\frac{1}{24}\int_0^1\int_0^1 \frac{-\log^3(xy)}{1+xy} (xy(1-xy))^n \ dxdy\end{equation*} We denote $d_n=\text{lcm}(1,2,...,n)$ and prove that for all $n\in\mathbb{N}$, \begin{equation*} d_n I_n= 15 (-1)^n 2^{n-4} d_n \zeta(5)+(-1)^{n+1} d_n \sum_{r=0}^{n} \binom{n}{r}\left(\sum_{k=1}^{n+r} \frac{(-1)^{k-1}}{k^5}\right) \end{equation*} Now if $\zeta(5)$ is rational, then $\zeta(5)=a/b$, $(a,b)=1$ and $a,b\in\mathbb{N}$. Then we take $n\geq b$ so that $b|d_n$. We show that for all $n\geq 1$, $0
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关于$ζ(5)$及更高奇数Zeta值非理性的说明
对于 $n\in\mathbb{N}$ 我们定义一个双积分 \begin{equation*}I_n=\frac{1}{24}\int_0^1\int_0^1 \frac{-\log^3(xy)}{1+xy} (xy(1-xy))^n \dxdy\end{equation*}我们表示 $d_n=text{lcm}(1,2,...,n)$ 并证明对于所有 $n\in\mathbb{N}$, d_n I_n= 15 (-1)^n 2^{n-4} d_n\zeta(5)+(-1)^{n+1} d_n \sum_{r=0}^{n}\binom{n}{r}\left(\sum_{k=1}^{n+r}\frac{(-1)^{k-1}}{k^5}\right) \end{equation*}现在,如果 $\zeta(5)$ 是有理数,那么 $\zeta(5)=a/b$, $(a,b)=1$ 并且 $a,b\in\mathbb{N}$.然后,我们取 $n\geq b$,使得 $b|d_n$。我们证明,对于所有 $ngeq 1$,$0
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