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SUMMARY:Anne Lonjou (Paris-Saclay)
DTSTART:20260113T140000Z
DTEND:20260113T160000Z
DTSTAMP:20260423T023008Z
UID:WienGAGT/50
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/WienGAGT/50/
 ">Cremona group and CAT(0) cube complexes</a>\nby Anne Lonjou (Paris-Sacla
 y) as part of Vienna Geometry and Analysis on Groups Seminar\n\n\nAbstract
 \nThe Cremona group is the group of birational transformations of the proj
 ective plane\, namely isomorphisms between two dense open subsets. This gr
 oup acts on a CAT(0) cube complex that we constructed with Urech. After an
  introduction on Cremona group and CAT(0) cube complexes\, I will focus on
  fixed-point property for actions on CAT(0) cube complexes and explain how
  it is related to an open question for the Cremona group.\n
LOCATION:https://researchseminars.org/talk/WienGAGT/50/
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