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SUMMARY:Big mapping class groups
DTSTART;VALUE=DATE-TIME:20181119T153000Z
DTEND;VALUE=DATE-TIME:20181119T164500Z
DTSTAMP;VALUE=DATE-TIME:20190722T142001Z
UID:indico-event-4094@indico.math.cnrs.fr
DESCRIPTION:Mapping class groups associated to surfaces whose fundamental
group is not finitely generated are called "big"\, and their study is link
ed to classical problems in dynamics. In this talk\, we discuss some of th
e basic properties of big mapping class groups\, their simplicial actions\
, and how these can be used to prove that big mapping class groups "detect
" surfaces or (if time allows) that the space of non-trivial quasimorphism
s of a big mapping class group is infinite dimensional.\n\nhttps://indico.
math.cnrs.fr/event/4094/
LOCATION:IHES Amphithéâtre Léon Motchane
URL:https://indico.math.cnrs.fr/event/4094/
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