Dia: Dimecres 17 de setembre de 2025
Lloc: Aula S04, Facultat de Matemàtiques i Estadística, UPC. Pau Gargallo,14 BCN.
A càrrec de: Przemysław Berk, Nikolaus Copernicus University in Toruń
Títol: Disjointness of rescalings of surface flows.
Resum: We consider certain classes of flows on compact surfaces such as locally Hamiltonian or translation flows, and we are investigating the relation of these flows with their rescalings, that is, their linear accelerations. I will show that in certain well parametrized classes of such flows, a typical one is disjoint (spectrally or in the sense of Furstenberg) with its rescalings (rational or real, depending on the class), i.e. it is non-isomorphic to an extreme degree. This talk is based on an article with Adam Kanigowski and an ongoing project with Corinna Ulcigrai.
Last updated: Fri Sep 12 19:09:13 2025