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SUMMARY:Catherine Meusburger (Universität Erlangen–Nürnberg)
DTSTART:20200618T120000Z
DTEND:20200618T130000Z
DTSTAMP:20260423T040710Z
UID:k-os/13
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/k-os/13/">Ma
 pping class group actions from Hopf monoids</a>\nby Catherine Meusburger (
 Universität Erlangen–Nürnberg) as part of [K-OS] Knot online seminar\n
 \n\nAbstract\nWe show that pivotal Hopf monoids in symmetric monoidal cate
 gories give rise to actions of mapping class groups of oriented surfaces w
 ith boundary components. These mapping class group actions are associated 
 with edge slides in embedded ribbon graphs that generalise chord slides in
  chord diagrams. They can be described simply and concretely in terms of g
 enerating Dehn twists. Under certain assumptions on the symmetric monoidal
  category and the Hopf monoid\, they induce actions of mapping class group
 s of closed surfaces.\n
LOCATION:https://researchseminars.org/talk/k-os/13/
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