BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//prima-2022//speaker calendar//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZOME
TZID:America/Vancouver
TZURL:http://tzurl.org/zoneinfo-outlook/America/Vancouver
X-LIC-LOCATION:America/Vancouver
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:19700308T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:19701101T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP;TZID=America/Vancouver:20221207T090000
DTSTART;TZID=America/Vancouver:20221207T090000
DTEND;TZID=America/Vancouver:20221207T100000

UID:20221207T090000@prima2022.primamath.org
SUMMARY:Groups acting at infinity
DESCRIPTION:I will present some recent results on rigidity of group actions and flows that
come from looking at induced actions on "boundaries at infinity".  This idea
has a long history, going back to Selberg and Mostow. In some of my recent
joint work, I use this approach in geometric group theory and dynamics,
studying boundary rigidity for actions of hyperbolic groups on their Gromov
boundary, and showing Anosov flows on 3-manifolds are determined by their
periodic orbits. This talk will survey some of the history, philosophy and
techniques related to proving rigidity results by looking out to infinity.

STATUS:CONFIRMED
LOCATION:Grand Ballroom
END:VEVENT
END:VCALENDAR
