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arXiv 2103.16873math.NT
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对称Tornheim双zeta函数的快速收敛级数表示

Rapidly convergent series representations of symmetric Tornheim double zeta functions

Takashi Nakamura

摘要:

在本文中,我们显示快速(或全球)收敛级数表示的Tornheim双zeta函数$T(s,t,u)$和(desingularized)对称Tornheim双zeta函数。作为推论,我们给出了关于$T(s,s,s)$在非正整数处的值和$T(s,s,s)$的极点位置的已知结果的一个新的证明。进一步证明了函数$T(s,s,s)$不能用$\sum_{k=1}^j c_k \prod_{r=1}^q ζ^{d_{kr}} (a_{kr} s + b_{kr})$形式的多项式表示,其中$a_{kr}, b_{kr}, c_k \in {\mathbb{C}}$和$d_{kr} \in {\mathbb{Z}}_{\ge 0}$ .

英文摘要:

In the present paper, for $s,t,u \in {\mathbb{C}}$, we show rapidly (or globally) convergent series representations of the Tornheim double zeta function $T(s,t,u)$ and (desingularized) symmetric Tornheim double zeta functions. As a corollary, we give a new a proof of known results on the values of $T(s,s,s)$ at non-positive integers and the location of the poles of $T(s,s,s)$. Furthermore, we prove that the function $T(s,s,s)$ can not be written by a polynomial in the form of $\sum_{k=1}^j c_k \prod_{r=1}^q ζ^{d_{kr}} (a_{kr} s + b_{kr})$, where $a_{kr}, b_{kr}, c_k \in {\mathbb{C}}$ and $d_{kr} \in {\mathbb{Z}}_{\ge 0}$.

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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