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CATEGORIES:Isaac Newton Institute Seminar Series
SUMMARY:Computing Kazhdan constants by computer. - Koji Fu
 jiwara (Kyoto University)
DTSTART;TZID=Europe/London:20170309T110000
DTEND;TZID=Europe/London:20170309T120000
UID:TALK71437AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/71437
DESCRIPTION:Ozawa found a new characterization of property (T)
   of finitely generated groups. His theorem gives 
 an algorithm  to compute a lower bound of the Kazh
 dan constant. Netzer-Thom  actually found a good p
 ositive lower bound for SL(3\,Z).  I will report o
 n computer experiments on other examples.  We foun
 d good lower bounds for lattice groups on A2-tilde
  buildings\,  which have property (T). This is an 
 experimental math talk.  <br><br><br><br>
LOCATION:Seminar Room 2\, Newton Institute
CONTACT:INI IT
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