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SUMMARY:Random graphs and applications to Coxeter groups - Jason Behrstock
  (City University of New York)
DTSTART:20170111T113000Z
DTEND:20170111T123000Z
UID:TALK69880@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:Erdos and Renyi introduced a model for studying random graphs 
 of a given "density" and proved that there is a sharp threshold at which l
 ower density random graphs are disconnected and higher density ones are co
 nnected.&nbsp\; We will explain some new threshold theorems for random gra
 phs and focus in particular on applications to geometric group theory: the
 se concern divergence functions\, which provide quantifications of non-pos
 itive curvature. Some of this talk will be on joint work with Hagen and Si
 sto\; other parts are joint work with Hagen\, Susse\, and Falgas-Ravry.
LOCATION:Seminar Room 1\, Newton Institute
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