Motivic coaction and single-valued map of polylogarithms from zeta generators

Author:

Frost HadleighORCID,Hidding MartijnORCID,Kamlesh DeepakORCID,Rodriguez CarlosORCID,Schlotterer OliverORCID,Verbeek BramORCID

Abstract

Abstract We introduce a new Lie-algebraic approach to explicitly construct the motivic coaction and single-valued map of multiple polylogarithms in any number of variables. In both cases, the appearance of multiple zeta values is controlled by conjugating generating series of polylogarithms with Lie-algebra generators associated with odd zeta values. Our reformulation of earlier constructions of coactions and single-valued polylogarithms preserves choices of fibration bases, exposes the correlation between multiple zeta values of different depths and paves the way for generalizations beyond genus zero.

Funder

Knut and Alice Wallenberg Foundation

Merton College, Oxford

European Research Council

Publisher

IOP Publishing

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