Browsing by Author "XX676878"

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    • Growth of groups and diffeomorphisms of the interval 
      Navas Flores, Andrés (BIRKHAUSER VERLAG AG, 2008-09)
      We prove that, for all α > 0, every finitely generated group of C1+α diffeomorphisms of the interval with sub-exponential growth is almost nilpotent. Consequently, there is no group of C1+α interval diffeomorphisms having ...
    • On uniformly quasisymmetric groups of circle diffeomorphisms 
      Navas Flores, Andrés (SUOMALAINEN TIEDEAKATEMIA, 2006)
      This article deals with the conjugacy problem of uniformly quasisymmetric groups of circle homeomorphims to groups of Mobius transformations. We prove that if the involved maps have some degree of regularity and the uniform ...
    • Reduction of cocycles and groups of diffeomorphisms of the circle 
      Navas Flores, Andrés (BELGIAN MATHEMATICAL SOC TRIOMPHE, 2006-06)
      We prove two theorems of reduction of cocycles taking values in the group of diffeomorphisms of the circle. They generalize previous results obtained by the author concerning rigidity for smooth actions on the circle of ...