01:02:44
publiée le 18 juin 2026
Des oscillations de Fourier aux ondes gravitationnelles : la théorie analytique de la propagation de l'information
De Ronald Coifman
Minimal dilatations on nonorientable surfaces
Apparaît dans la collection : Summer School 2018 - Teichmüller dynamics, mapping class groups and applications.
We discuss the problem of finding the minimal dilatation among pseudo-Anosov mapping classes on a fixed closed surface. In particular, for every nonorientable closed surface of even genus, we consider a simple candidate which conjecturally minimises the dilatation among pseudo-Anosov mapping classes with an orientable invariant foliation. This is joint work with Balázs Strenner.
