# Biography

Nicolas Bergeron is a French mathematician. He works in the Département de Mathématiques et Applications at the École normale supérieure (ENS) in Paris, of which he is the current director.

He obtained his doctorate at ENS Lyon in 2000 under the supervision of Jean-Pierre Otal with a thesis entitled Geodesic cycles in hyperbolic varieties. He did his postdoctoral studies in Zurich and Neuchâtel. In 2001, he became Research Fellow at the Université de Paris Sud, where he completed his accreditation in 2005 (On cohomology and the spectrum of locally symmetrical varieties) and in 2005 at the École normale supérieure de Paris.

Several of his publications show an interest in the Oulipo: reference to *Tentative d'épuisement d'un lieu parisien*, by Georges Perec, article devoted to Jacques Roubaud.

Prizes and awards:

He won the CNRS Bronze Medal in 2007.

He became a junior member of the Institut universitaire de France in 2010.

# Research interests

His areas of interest are the geometry and topology of locally symmetrical spaces, arithmetic groups, their cohomology.

# Videos

October 16, 2020

### Excerpt from the conference Trigonometric functions and modular symbols editable

Nicolas Bergeron