Type: Article
Publication Date: 2010-03-17
Citations: 214
DOI: https://doi.org/10.4007/annals.2010.171.451
Pugh and Shub have conjectured that essential accessibility implies ergodicity for a C 2 , partially hyperbolic, volume-preserving diffeomorphism.We prove this conjecture under a mild center bunching assumption, which is satisfied in particular by all partially hyperbolic systems with 1-dimensional center bundle.We also obtain ergodicity results for C 1Cı partially hyperbolic systems.