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SUMMARY:Marco Bertola (Concordia University)
DTSTART:20211001T010000Z
DTEND:20211001T020000Z
DTSTAMP:20260423T040106Z
UID:CGP-MP/15
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CGP-MP/15/">
 Graph connections\, (wild) character varieties and generating function in 
 symplectic geometry</a>\nby Marco Bertola (Concordia University) as part o
 f IBS-CGP Mathematical Physics Seminar\n\n\nAbstract\nWe will discuss a na
 tural (pre)-symplectic structure associated to an arbitrary flat graph con
 nection on a Riemann surface and its invariance properties. This allows to
  efciently parametrize (wild) character varieties using Fock-Goncharov coo
 rdinates and provide explicit log-canonical coordinates for several types 
 of Poisson structures\; Goldman on the standard character variety\, Flasch
 ka-Newell-Boalch on Stokes' manifolds and Ugaglia-Bondal Poisson structure
 s. \nIn the case of (wild) character varieties\, this construction allows 
 to define the generating functions of symplectic polarizations and identif
 y them with the classical notion of isomonodromic tau functions of the Jap
 anese school.\n
LOCATION:https://researchseminars.org/talk/CGP-MP/15/
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