Abstract (EN):
There is a one-to-one correspondence between C 1+H Cantor exchange systems that are C 1+H fixed points of renormalization and C 1+H diffeomorphisms f on surfaces with a codimension 1 hyperbolic attractor ¿ that admit an invariant measure absolutely continuous with respect to the Hausdorff measure on ¿. However, there is no such C 1+¿ Cantor exchange system with bounded geometry that is a C 1+¿ fixed point of renormalization with regularity ¿ greater than the Hausdorff dimension of its invariant Cantor set. The proof of the last result uses that the stable holonomies of a codimension 1 hyperbolic attractor ¿ are not C 1+¿ for ¿ greater than the Hausdorff dimension of the stable leaves of f intersected with ¿. © 2007, Birkhäuser Verlag Basel/Switzerland.
Idioma:
Inglês
Tipo (Avaliação Docente):
Científica