Multiple zeta values and periods of moduli spaces $\mathfrak{M}_{0,n}$

Details Multiple zeta values and periods of moduli spaces $\mathfrak{M}_{0,n}$ Multiple zeta values and periods of moduli spaces $\mathfrak{M}_{0,n}$

2006-06-17

arxiv.org/abs/math/0606419v1

Mathematics

Algebraic Geometry

110 pages, 15 figures

Scientific paper

In this paper we prove a conjecture due to Goncharov and Manin which states that the periods of the moduli spaces $\mathfrak{M}_{0,n}$ of Riemann spheres with $n$ marked points are multiple zeta values. In order to do this, we introduce a differential algebra of multiple polylogarithms on $\mathfrak{M}_{0,n}$, and prove that it is closed under the operation of taking primitives. The main idea is to apply a version of Stokes' formula iteratively, and to exploit the geometry of the moduli spaces to reduce each period integral to multiple zeta values. We also give a geometric interpretation of the double shuffle relations, by showing that they are two extremal cases of general product formulae for periods which arise by considering natural maps between moduli spaces.

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