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arXiv 2009.04112math.NT
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截断的$t$ -adic对称多重zeta值和双重混洗关系

Truncated $t$-adic symmetric multiple zeta values and double shuffle relations

Masataka Ono, Shin-ichiro Seki, Shuji Yamamoto

摘要:

我们研究的对称多重zeta值,称为$t$ -adic对称多重zeta值,通过考虑其有限截断的细化。更精确地说,两种正则化(调和和混洗)给出了两种$t$ -adic对称多重zeta值,因此我们相应地引入了两种截断。然后我们证明了我们的截断趋向于相应的$t$ -adic对称多重zeta值,并分别满足调和关系和混洗关系。这给出了$t$ -adic对称多重zeta值的双重混洗关系的一个新的证明,Jarossay首先证明了这一点。为了证明混洗关系,我们发展了与$2$ -着色有根树相关的截断$t$ -adic对称多重zeta值理论.最后讨论了Kaneko-Zagier猜想的一个改进和Mordell-Tornheim型的$t$ -adic对称多重zeta值.

英文摘要:

We study a refinement of the symmetric multiple zeta value, called the $t$-adic symmetric multiple zeta value, by considering its finite truncation. More precisely, two kinds of regularizations (harmonic and shuffle) give two kinds of the $t$-adic symmetric multiple zeta values, thus we introduce two kinds of truncations correspondingly. Then we show that our truncations tend to the corresponding $t$-adic symmetric multiple zeta values, and satisfy the harmonic and shuffle relations, respectively. This gives a new proof of the double shuffle relations for $t$-adic symmetric multiple zeta values, first proved by Jarossay. In order to prove the shuffle relation, we develop the theory of truncated $t$-adic symmetric multiple zeta values associated with $2$-colored rooted trees. Finally, we discuss a refinement of Kaneko-Zagier's conjecture and the $t$-adic symmetric multiple zeta values of Mordell-Tornheim type.

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