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比利时vs摩洛哥足彩 ,
university of california san diego

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math 211b - group actions seminar

julien melleray

université lyon 1

from invariant measures to orbit equivalence, via locally finite groups

abstract:

a famous theorem of giordano, putnam and skau (1995) states that two minimal homeomorphisms of a cantor space x are orbit equivalent (i.e, the equivalence relations induced by the two associated actions are isomorphic) as soon as they have the same invariant borel probability measures. i will explain a new "elementary" approach to prove this theorem, based on a strengthening of a result of krieger (1980). i will not assume prior familiarity with cantor dynamics. this is joint work with s. robert (lyon).

host: brandon seward

february 3, 2022

12:00 pm

zoom id: 967 4109 3409
email an organizer for the password

research areas

ergodic theory and dynamical systems

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