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SUMMARY:Boundary Rigidity for Hyperbolic Groups
DTSTART;VALUE=DATE-TIME:20220516T120000Z
DTEND;VALUE=DATE-TIME:20220516T131500Z
DTSTAMP;VALUE=DATE-TIME:20220520T180858Z
UID:indico-event-7831@indico.math.cnrs.fr
DESCRIPTION:A hyperbolic group acts on its Gromov boundary by homeomorphis
ms. In recent work with Jason Manning\, we showed that for groups with sph
ere boundary\, the boundary action is rigid in the sense of topological dy
namics: any sufficiently small perturbation is semi-conjugate to the origi
nal action. In ongoing work also with Teddy Weisman\, we are extending thi
s result to all hyperbolic groups\, using a coding argument in the spirit
of Sullivan. This talk will introduce the rigidity problem and describe so
me of the tools towards the proof.\n\nhttps://indico.math.cnrs.fr/event/78
31/
LOCATION:IHES Amphithéâtre Léon Motchane
URL:https://indico.math.cnrs.fr/event/7831/
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