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

Masataka Ono*, Shin ichiro Seki, Shuji Yamamoto

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Article number15
JournalResearch in Number Theory
Volume7
Issue number1
DOIs
Publication statusPublished - 2021 Mar
Externally publishedYes

Keywords

  • Double shuffle relation
  • Kaneko–Zagier’s conjecture
  • Multiple zeta values of Mordell–Tornheim type
  • t-adic symmetric multiple zeta values

ASJC Scopus subject areas

  • Algebra and Number Theory

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