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On rational Drinfeld associators

Published in Selecta Mathematica. 2011, vol. 17, no. 1, p. 47-65
Collection Open Access - Licence nationale Springer 
Abstract We prove an estimate on denominators of rational Drinfeld associators. To obtain this result, we prove the corresponding estimate for the p-adic associators stable under the action of suitable elements of Gal(Q¯/Q) . As an application, we settle in the positive Duflo’s question on the Kashiwara–Vergne factorizations of the Jacobson element J p (x, y) = (x + y) p − x p − y p in the free Lie algebra over a field of characteristic p. Another application is a new estimate on denominators of the Kontsevich knot invariant.
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ALEXEEV, Anton, PODKOPAEVA, Maria, SEVERA, Pavol. On rational Drinfeld associators. In: Selecta Mathematica, 2011, vol. 17, n° 1, p. 47-65. https://archive-ouverte.unige.ch/unige:115106

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Deposited on : 2019-03-19

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