PreprintCC BY 4.0HAL
Regularised double shuffle relations for planar Arborified Zeta Values
Abstract
We endow spaces of decorated planar rooted trees with new dendriform and tridendrifrom algebra structures and provide their combinatorial description. We then show that the planar counterparts of Arborified Zeta Values are algebra morphisms for these shuffle and quasi- shuffle products of planar rooted trees. We also prove an arborified version of Hoffman’s regularisation relation for Arborified Zeta Values. We conjecture that those give every rational relation between Arborified Zeta Values and show that this conjecture implies the regularised double shuffle conjecture for Multiple Zeta Values.
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BibTeX
@misc{catoire2026regularised,
title = {{Regularised double shuffle relations for planar Arborified Zeta Values}},
author = {Pierre Catoire and Pierre J. Clavier and Ku-Yu Fan},
howpublished = {HAL},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.02346},
eprint = {2609.02346},
archivePrefix = {arXiv},
url = {https://hal.science/hal-05738717v1},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Regularised double shuffle relations for planar Arborified Zeta Values
AU - Pierre Catoire
AU - Pierre J. Clavier
AU - Ku-Yu Fan
PY - 2026
DA - 2026/09/02
PB - HAL
DO - 10.48550/arxiv.2609.02346
UR - https://hal.science/hal-05738717v1
AB - We endow spaces of decorated planar rooted trees with new dendriform and tridendrifrom algebra structures and provide their combinatorial description. We then show that the planar counterparts of Arborified Zeta Values are algebra morphisms for these shuffle and quasi- shuffle products of planar rooted trees. We also prove an arborified version of Hoffman’s regularisation relation for Arborified Zeta Values. We conjecture that those give every rational relation between Arborified Zeta Values and show that this conjecture implies the regularised double shuffle conjecture for Multiple Zeta Values.
ER -