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SUMMARY:Messing around in the 1-2 subgroup of the smooth mapping class gro
 up of S^4 [MPIM]
DTSTART:20251023T110000Z
DTEND:20251023T120000Z
DTSTAMP:20260420T161300Z
UID:indico-event-817@math-events.uni-bonn.de
DESCRIPTION:Speakers: David Gay (University of Georgia)\n\nLow-dimensional
  topology seminar\nThe 1-2 subgroup of the smooth mapping class group of S
 ^4 is the subgroup of diffeomorphisms which arise as the monodromy of the 
 boundary of a 5-dimensional handlebody bundle over S^1 in which the handle
 bodies only use 0-\, 1- and 2-handles and each fiber is diffeomorphic to B
 ^5. That is a mouthful and I'll try to make sense of it for you\, set in t
 he larger context of the full smooth mapping class group of S^4\, and show
  how to explicitly work out some relations in the 1-2 subgroup using diagr
 ammatic tools.\n\nhttps://math-events.uni-bonn.de/event/817/
LOCATION:MPIM\, Vivatsgasse\,  7 - Lecture Hall (Max Planck Institute for 
 Mathematics)
URL:https://math-events.uni-bonn.de/event/817/
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