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Exam Template for Pandoc

Published .  class  code


Like many people, I have been teaching online for some time now. In order to help students get an idea of how well they understand the material, I have been giving them and grading weekly homework (keep in mind that it is not common in French…

The action of the orthogonal group on the sphere is not formal

Published .  math

In this post, I record a simple and probably well-known fact; but since I have to remake the computation again and again (because I forget it...) I thought it would be nice to have it in an accessible place. The fact is that for an odd , the usual…

Template for letters in LaTeX

Published .  code


Several people have asked me for my LaTeX template to write letters, so I guess I might as well put it up on my webpage. It uses the scrlttr2 package. I think the markup is relatively self-explanatory. The template expects a copy of your signature…

arXiv2BibLaTeX: Create a BibLaTeX entry from arXiv

Published . Updated .  arxiv  code  math

tl;dr: /a2b to get a .bib from arXiv entries. Update May 19th, 2021: New URL. Have you ever wanted to create a bib entry from an arXiv preprint? There are a few tools available, including one provided by arXiv (click on "NASA ADS" in the…

Peccot lecture & COVID-19

Published . Updated .  class  math  peccot

Update : The videos are now available on the Collège de France's website! Please go there for the third lecture and there for the fourth lecture . As some of you may know I was one of the people chosen this year to give a Peccot lecture at the…

Braid video

Published .  animation  math  talk


Thursday I'm giving a talk at the online Toric Topology research seminar . (I was supposed to go there in person, but you can probably expect, the current pandemic made that impossible.) So I took the opportunity to prepare a little illustration to…

First Peccot lecture

Published .  class  math  peccot  photo

Yesterday was my first Peccot lecture ! I think it went okay. The video is going to be available soon on this webpage . I mainly talked about the background for my course: what are configuration spaces, why do we care about them, what do we know…

Animated illustration of the Fulton-MacPherson operad

Published .  animation  class  math  peccot

I am finishing to prepare my Peccot Lectures that start next week. I have prepared a small animation to illustrate the Fulton--MacPherson compactification using Blender, and I think it's relatively neat! I am not a 3D artist, obviously, but (with…

Peccot Lecture

Published .  math  peccot

Yesterday I received a letter from the Collège de France. I have been selected to give this year a Peccot Lecture , which " rewards each year young mathematicians under 30 who have been noticed in theoretical or applied mathematics " 😃. This is of…

Lecture Notes for the course "Homotopy Theory"

Published .  class  math  notes

This summer I've started to compile lecture notes for my class on homotopy theory in January/February. They are heavily inspired by Grégory Ginot's lecture notes from last year on the same subject, although I've reorganized them a bit; in…

Faculty in France over the past 20 years

Published . Updated .  job

Recently the French ministry for Higher Education and Research released some data on demographics among lecturers and professors in France . I was proctoring an exam yesterday and couldn't do anything too mentally taxing (because students might…

New University of Paris

Published .  job

It's official: the new University of Paris is born! For the moment, Paris Diderot University still exists, but it will merge with Paris Descartes and the new university on January 1 st , 2020; the IPGP will remain a legally separate entity. (Yes, it…