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This is my former homepage. Here  one can find my current homepage.

  I am a research associate at MIT mathematics department (on leave from lml)   

    My next talk will be at IHP (Paris) in the séminaire de géométrie et quantification

    I will give a course at ESI (vienna) for the school Geoquant 2013

    I am coorganizing the Topology and Geometry meeting in Lens

un lien vers un tp