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SUMMARY:Yu-Wei Fan (UC Berkeley)
DTSTART:20210208T230000Z
DTEND:20210209T000000Z
DTSTAMP:20260423T010250Z
UID:UBC-AG/19
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/UBC-AG/19/">
 Stokes matrices\, character varieties\, and points on spheres</a>\nby Yu-W
 ei Fan (UC Berkeley) as part of UBC Vancouver Algebraic Geometry Seminar\n
 \n\nAbstract\nModuli spaces of points on n-spheres carry natural actions o
 f braid groups. For n=0\,1\, and 3\, we prove that these symmetries extend
  to actions of mapping class groups of positive genus surfaces\, through e
 xceptional isomorphisms with certain character varieties. We also apply th
 e exceptional isomorphisms to the study of Stokes matrices and exceptional
  collections of triangulated categories. Joint work with Junho Peter Whang
 .\n
LOCATION:https://researchseminars.org/talk/UBC-AG/19/
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