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SUMMARY:Tyrone Ghaswala (University of Waterloo)
DTSTART:20260213T160000Z
DTEND:20260213T171500Z
DTSTAMP:20260423T005747Z
UID:CIRGET/155
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CIRGET/155/"
 >Big mapping class groups and uniqueness of Polish structures</a>\nby Tyro
 ne Ghaswala (University of Waterloo) as part of CRM - Séminaire du CIRGET
  / Géométrie et Topologie\n\nLecture held in PK-5115.\n\nAbstract\nSuppo
 se you are given a topological group. You may wonder about how much the gr
 oup structure determines the topology. At first glance\, the answer appear
 s to be "not very much at all"\, since every topological group admits the 
 discrete topology\, and the trivial topology\, both of which are compatibl
 e with the group operation. \n\nMapping class groups of infinite-type surf
 aces are humungous (not a technical term)\, and come equipped with a Polis
 h topology. We can ask a refinement of the above question: How much does t
 he group structure of a mapping class group determine its Polish topology?
  In this talk we'll investigate this question\, leading to a perhaps surpr
 ising answer.\n\nThis is joint work with Sumun Iyer\, Robbie Lyman\, and N
 ick Vlamis.\n
LOCATION:https://researchseminars.org/talk/CIRGET/155/
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