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SUMMARY:Rob Kropholler (University of Warwick)
DTSTART:20231116T140500Z
DTEND:20231116T150000Z
DTSTAMP:20260423T020959Z
UID:GaTO/88
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/GaTO/88/">Th
 e landscape of Dehn functions</a>\nby Rob Kropholler (University of Warwic
 k) as part of Geometry and topology online\n\nLecture held in Room B3.02 i
 n the Zeeman Building\, University of Warwick.\n\nAbstract\nThe Dehn funct
 ion of a finitely presented group \\(G\\) can be used to measure the compl
 exity of its word problem. Specifically the Dehn function measures the min
 imal area required to fill loops in the Cayley graph of \\(G\\). There are
  various analogues of the Dehn function for wider classes of groups. These
  all correspond to fillings of different loops in the Cayley graph. I will
  carefully introduce the various analogues and discuss how the various Deh
 n functions can be used to prove interesting results. I will be particular
 ly interested in the case of subgroups of hyperbolic groups.\n
LOCATION:https://researchseminars.org/talk/GaTO/88/
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