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SUMMARY:Boundary Rigidity for Hyperbolic Groups
DTSTART;VALUE=DATE-TIME:20220516T120000Z
DTEND;VALUE=DATE-TIME:20220516T131500Z
DTSTAMP;VALUE=DATE-TIME:20230528T141400Z
UID:indico-event-7831@indico.math.cnrs.fr
CONTACT:cecile@ihes.fr
DESCRIPTION:Speakers: Kathryn Mann (Cornell University)\n\nA hyperbolic gr
oup acts on its Gromov boundary by homeomorphisms. In recent work with Jas
on Manning\, we showed that for groups with sphere boundary\, the boundary
action is rigid in the sense of topological dynamics: any sufficiently sm
all perturbation is semi-conjugate to the original action. In ongoing work
also with Teddy Weisman\, we are extending this result to all hyperbolic
groups\, using a coding argument in the spirit of Sullivan. This talk will
introduce the rigidity problem and describe some of the tools towards the
proof.\n\nhttps://indico.math.cnrs.fr/event/7831/
LOCATION:Amphithéâtre Léon Motchane (IHES)
URL:https://indico.math.cnrs.fr/event/7831/
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