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UID:news340@dmi.unibas.ch
DTSTAMP;TZID=Europe/Zurich:20181204T082628
DTSTART;TZID=Europe/Zurich:20181106T103000
SUMMARY:Seminar Algebra and Geometry: Juliette Bavard (University of Rennes
 )
DESCRIPTION:The plane minus a Cantor set and its mapping class group appear
  in many dynamical contexts\, including group actions on surfaces\, the 
 study of groups of homeomorphisms on a Cantor set\, and complex dynamics.
  In this talk\, I will motivate the study of this 'big mapping class grou
 ps'. I will then present the 'ray graph'\, which is a Gromov-hyperbolic 
 graph on which this group acts by isometries.  
X-ALT-DESC:The plane minus a Cantor set and its mapping class group appear 
 in many dynamical contexts\, including&nbsp\;group&nbsp\;actions on surfac
 es\, the study of groups of homeomorphisms on a Cantor set\, and complex d
 ynamics.&nbsp\;In this talk\, I will motivate the study of this 'big mappi
 ng class groups'. I will then present the 'ray&nbsp\;graph'\, which is a G
 romov-hyperbolic&nbsp\;graph&nbsp\;on which this&nbsp\;group&nbsp\;acts by
  isometries.&nbsp\;<span id="1540382417616S">&nbsp\;</span><br /> 
DTEND;TZID=Europe/Zurich:20181106T120000
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