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Genus-zero and genus-one string amplitudes and special multiple zeta values

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arxiv 1906.12339 v2 pith:W2CBCUG4 submitted 2019-06-28 math.NT hep-thmath-phmath.MP

classification math.NThep-thmath-phmath.MP
keywords amplitudescontributiongenus-onegenus-zeromultiplepointspecialstring
verification ladder T0 review T1 audit T2 compute T3 formal
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In this paper we show that in perturbative string theory the genus-one contribution to formal 2-point amplitudes can be related to the genus-zero contribution to 4-point amplitudes. This is achieved by studying special linear combinations of multiple zeta values that appear as coefficients of the amplitudes. We also exploit our results to relate closed strings to open strings at genus one using Brown's single-valued projection, proving a conjecture of Broedel, Schlotterer and the second author.

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Cited by 3 Pith papers

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