Séminaire - Décembre
Le séminaire aura lieu un mercredi par mois de 14h à 15h à l'Institut Henri Poincaré à Paris. Pour télécharger l'affiche du mois: decembre.pdf.
- 04/12/2019 - Rodolfo Gutiérrez-Romo (Universidad de Chile) - salle 421
Titre: Coding the Teichmüller flow by veering triangulations
Resumé: Since the work of Rauzy and Veech, a great deal of effort has been directed at finding suitable combinatorial schemes (or "codings") to study the Teichmüller flow. In this talk, I will present a new coding leveraging the theory of veering triangulations. After finding a reasonable notion of “irreducibility”, the connected components of the resulting automata (induced by edge flips) are in a one-to-one correspondence with the components of the moduli space of quadratic differentials. Moreover, the coding has bounded distortion, which makes it conductive to study the dynamical properties of the Teichmüller flow. This is joint work with Mark Bell, Vincent Delecroix, Vaibhav Gadre and Saul Schleimer.