Seminario del 2021

Maggio
06
2021
Selim Ghazouani (Université d’Orsay, Francia)
Piecewise affine homeomorphisms of the circle and dilation surfaces
nell'ambito della serie: DINAMICI: ANOTHER INTERNET SEMINAR
sistemi dinamici
In this talk I will consider the following question: if one picks a piecewise affine map of the circle “at random”, what dynamical behaviour are we likely to observe? The case of standard circle diffeomorphisms has been studied by Herman in the 80s; in this emblematic case the problem can be reduced to theorems close to KAM theory. For the piecewise affine case, we put forward a geometric approach, inspired by methods from both Teichmüller theory and hyperbolic geometry.
organizzato da: Marco Lenci & Comitato Organizzatore DAI Seminar

indietro