
Presentation of the T2 2024: "Group Action and Rigidity : Around the Zimmer Program"
By Kathryn Mann , David Fisher , Vincent Pecastaing


A l’origine de l’écriture : que pouvons-nous apprendre des écritures cunéiformes ?
By Cécile Michel
Appears in collections : Huawei-IHÉS Workshop on Mathematical Sciences, Fields medallists - 2010
This talk is the story of an encounter of three distinct fields: non-Euclidean geometry, gas dynamics and economics. Some of the most fundamental mathematical tools behind these theories appear to have a close connection, which was revealed around the turn of the 21st century, and has developed strikingly since then.