Exercise sessions I gave at the ENS de Lyon

• Topologie et calcul différentiel. Webpage of the course given in 2024.
• Algèbre II. Webpage of the course given in 2025.
• Groupe fondamental et revêtement.

RJMI

• Statement of the problem I proposed in 2021.
• Some elements of response.
• Article on the 2020 edition.