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SUMMARY:Characterizing a vertex-transitive graph by a large ball - Mikael 
 de la Salle (ENS - Lyon\; CNRS (Centre national de la recherche scientifiq
 ue))
DTSTART:20170508T150000Z
DTEND:20170508T160000Z
UID:TALK72375@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:The subject of the talk will be vertex-transitive infinite  co
 nnected graphs with bounded degree and with a property of large scale  sim
 ple connectedness. The most classical examples of such objects are  Cayley
  graphs of finitely presented groups\, but I will explain that  there are 
 (uncountably) many other\, and I will study some topological  questions on
  the space of all such graphs. In particular I will give some answers to a
  question of Benjamini and Georgakopoulos asking which Cayley graphs are i
 solated. Based on  joint works with Romain Tessera.<br>
LOCATION:Seminar Room 1\, Newton Institute
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