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SUMMARY:Multizeta values and associators in genus zero and one - Leila Sch
 neps (Institut de Mathématiques de Jussieu\, CNRS (Centre national de la 
 recherche scientifique)\, Sorbonne Université)
DTSTART:20220601T150000Z
DTEND:20220601T160000Z
UID:TALK175217@talks.cam.ac.uk
DESCRIPTION:The Drinfeld associator &Phi\;KZ&nbsp\;is well-known to anyone
  who studies multiple polylogs and multizeta values. However\, the geometr
 ic idea that &Phi\;KZ&nbsp\;is really in genus zero\, and that associators
  can also be constructed in higher genus\, is less familiar. In the first 
 part of this talk\, we will show the construction of the elliptic associat
 or by Enriquez\, and underline its properties in analogy to the well-known
  properties of &Phi\;KZ. In the second part\, we will give a theorem showi
 ng that what is going here is much more than a mere analogy: in fact the e
 lliptic associator can be constructed directly from the Drinfeld associato
 r\, and its main properties can then be derived directly from those of &Ph
 i\;KZ.
LOCATION:Seminar Room 2\, Newton Institute
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