Speaker：Sebastien Ferenczi，Institut de Mathématiques de Marseille，France

Time：2017-06-13， 16:30-17:30

Place：Room 1518，School of Mathematical Sciences

Detail: we look at interval exchanges defined as first return maps on the set of diagonals of a flow of direction $/alpha$ on a square-tiled surface: our main result is to show, by a combinatorial approach, that they are not rigid when the surface has at least one true singularity and $/alpha$ has bounded partial quotients.

Organizer: School of Mathematical Sciences