2 papers
math.DS2025
Analytic pseudo-rotations
Pierre Berger
We construct analytic symplectomorphisms of the cylinder or the sphere with zero or exactly two periodic points and which are not conjugated to a rotation. In the case of the cylin…
math.DS2024
Every diffeomorphism is a total renormalization of a close to identity map
Pierre Berger, Nicolaz Gourmelon, Mathieu Helfter
For any , we show that every diffeomorphism of a manifold of the form is a total renormalization of a -close to identity map…