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SUMMARY:Robert Kropholler (University of Warwick)
DTSTART:20211007T140500Z
DTEND:20211007T145500Z
DTSTAMP:20260423T003241Z
UID:GaTO/41
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GaTO/41/">Co
 arse embeddings and homological filling functions</a>\nby Robert Kropholle
 r (University of Warwick) as part of Geometry and topology online\n\n\nAbs
 tract\n<p>\n        The homological filling function of a\n        finitel
 y presented group \\(G\\) measures the difficulty of\n        filling loop
 s with surfaces in a classifying space. The\n        behaviour of this fun
 ction when passing to finitely presented\n        subgroups is rather wild
 .  If one adds assumptions on the\n        dimension of \\(G\\)\, then one
  can bound the homological filling\n        function of the subgroup by th
 at of \\(G\\).  I will discuss how\n        to generalise these results fr
 om subgroups to coarse\n        embeddings and also to higher dimensional 
 filling functions.\n      </p>\n      <p>\n        This is joint work with
  Mark Pengitore.\n      </p>\n\nWe start five minutes after the hour.\n
LOCATION:https://researchseminars.org/talk/GaTO/41/
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