Adapted Metrics for Dominated splittings.
GOURMELON, Nicolas
Institut de Mathématiques de Bourgogne [Dijon] [IMB]
Institut de Mathématiques de Bordeaux [IMB]
Institut de Mathématiques de Bourgogne [Dijon] [IMB]
Institut de Mathématiques de Bordeaux [IMB]
GOURMELON, Nicolas
Institut de Mathématiques de Bourgogne [Dijon] [IMB]
Institut de Mathématiques de Bordeaux [IMB]
< Reduce
Institut de Mathématiques de Bourgogne [Dijon] [IMB]
Institut de Mathématiques de Bordeaux [IMB]
Language
en
Article de revue
This item was published in
Ergodic Theory and Dynamical Systems. 2007, vol. 27, n° 6, p. 1839--1849
Cambridge University Press (CUP)
English Abstract
A Riemannian metric is adapted to an hyperbolic set of a diffeomorphism if, for this metric, the expansion/contraction of the unstable/stable directions can be seen after only one iteration. A dominated splitting is a ...Read more >
A Riemannian metric is adapted to an hyperbolic set of a diffeomorphism if, for this metric, the expansion/contraction of the unstable/stable directions can be seen after only one iteration. A dominated splitting is a notion of weak hyperbolicity where the tangent bundle of the manifold splits in invariant subbundles such that the vector expansion on one bundle is uniformly smaller than on the next bundle. The existence of an adapted metric for a dominated splitting has been asked by Hirsch Pugh and Shub who answer positively to the question in the special case of a dominated splitting in two bundles, one being of dimension 1. This paper gives a complete answer to this problem, building adapted metrics for dominated splittings and partially hyperbolic splittings in arbitrarily many subbundles of arbitrary dimensions. These results stand for diffeomorphisms and for flows.Read less <
English Keywords
Dominated splitting
partially hyperbolic
adapted metric
Banach bundle
linear cocycle
Origin
Hal imported