1. CMB 2011 (vol 54 pp. 676)
|Quasi-isometry and Plaque Expansiveness|
We show that a partially hyperbolic diffeomorphism is plaque expansive (a form of structural stability for its center foliation) if the strong stable and unstable foliations are quasi-isometric in the universal cover. In particular, all partially hyperbolic diffeomorphisms on the 3-torus are plaque expansive.