A quasi-Anosov diffeomorphism that is not Anosov
A quasi-Anosov diffeomorphism that is not Anosov
In this note, we give an example of a diffeomorphism <italic>f</italic> on a three dimensional manifold <italic>M</italic> such that <italic>f</italic> has a property called quasi- Anosov but such that <italic>f</italic> does not have a hyperbolic structure (is not Anosov). Mañé has given a method of extending <italic>f</italic> to a diffeomorphism …