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UID:1335@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20160919T140000
DTEND;TZID=Europe/Paris:20160919T150000
DTSTAMP:20160904T120000Z
URL:https://www.i2m.univ-amu.fr/evenements/superrigidity-in-partially-hype
 rbolic-systems/
SUMMARY: (...): Superrigidity in partially hyperbolic systems
DESCRIPTION:: A superrigidity phenomenon occurs when we can reconstruct the
  action of a Lie group from that of a discrete subgroup. In Margulis's fam
 ous superrigidity theorem\, the Lie group is large and the subgroup is a l
 attice. When the Lie group is small\, for example for R and the subgroup Z
  we have no such superrigidity. We proved a surprising superrigidity pheno
 menon in partially hyperbolic dynamics: under relatively mild hypotheses\,
  one can reconstruct a flow from the action of a diffeomorphism. This is j
 oint work with C. Butler.https://webusers.imj-prg.fr/disheng.xu
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