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SUMMARY:Kazhdan groups have cost 1 - Tom Hutchcroft (Cambridge)
DTSTART:20181127T140000Z
DTEND:20181127T150000Z
UID:TALK115408@talks.cam.ac.uk
CONTACT:Perla Sousi
DESCRIPTION:Studying actions of groups on probability spaces leads to many
  questions that are of serious interest to group-theorists and can be unde
 rstood and contributed to by probabilists. In particular\, the theory of c
 ost has raised several outstanding open questions that can be interpreted 
 as questions about uniform spanning forests and factor of IID processes. I
  will introduce these problems and give a solution to one of them\, namely
  that Kazhdan groups have cost 1. All the technical terms in the previous 
 sentence will be introduced in a way accessible to probabilists. Joint wor
 k with Gabor Pete.
LOCATION:MR12\, CMS\, Wilberforce Road\, Cambridge\, CB3 0WB
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