Multiple polylogarithms and mixed Tate motives
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...We call the number of indices of the Euler sums and MZVs their depthd and w = d ∑ k=1 |ck| (1.3) their weight....
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"Multiple polylogarithms and mixed T..." refers background in this paper
... This map is an isomorphism after tensoring by C. c) The maps Ps are compatible with the natural projections. Proof. The part a) follows from (131). The part b) is the special case of Chen’s theorem ([Ch]) for XZ. In fact in our case it follows trivially from (131). Indeed, both vector spaces in (132) are of the same dimension. Choose simple loops σi around zi based in zk+1. Then composing a given pat...
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"Multiple polylogarithms and mixed T..." refers background or result in this paper
...ee however the work of M. Hoffman [Hof] and references there. In the very end of 80’th they were resurrected as coefficients of Drinfeld’s associator [Dr]; couple of years later rediscovered by D.Zagier [Z] who, in particular, found and studied the double shuffle relations for the multiple zeta numbers; appeared in the works of M. Kontsevich [K1] on knot invariants, and the author [G0-1] on mixed Tate mot...
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...k2 + X k1>k2> 1 km 1 k n 2 New relations were found by D.Zagier. Surprisingly the dimension of the space of cusp forms for SL 2(Z) showed up in his study of the depth 2 double shuffle relations [Z], [Z1]. 2 Shortly after Kontsevich [K1] showed that the new relations are coming from the product formula for the iterated integrals (4). The main problem is to describe explicitly the structure of th...
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...)∨ • = UF(3,5)∨ • The rule is clear from the pattern (π2) 3f 3(f 7)3(f 5)2 −→pg 3(g 3p2)3(g 3p)2. In particular if dk := dimZk then one should have dk = dk−2 + dk−3. Computer calculations of D.Zagier [Z] confirmed this prediction for k≤12. Later on much more extensive calculations were made by D. Broadhurst [Br]. One may reformulate 1.1 as a statement about the space of irreducible multiple zeta value...
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"Multiple polylogarithms and mixed T..." refers methods in this paper
...shufle relations in a different way and worked out several regularization procedures. In this subsection we present an approach to the regularization of the first shuffle relations developed in the end of [G3]. Another approach was recently developed in the theses of G. Racinet [R]. In particular Racinet provides an explicit formula relating his regularization with the canonical regularization. I left to t...
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"Multiple polylogarithms and mixed T..." refers background in this paper
...xed Tate motives. Later on, in the mid of 90’th D. Broadhurst and D. Kreimer [Kr], [BK] discovered them in quantum field theory. As coefficients of Drinfeld’s associator appear in quantization problems ([K2]). In fact in [Dr] and [K1] appeared not power series (3) but the so-called Drinfeld integrals related to the multiple ζ-values by the following formula first noticed by Kontsevich ([K1]): ζ(n1,...,nm)...
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