Archive
2026
- Compter des composantes irréductibles est comme compter des points
- Passer du clavier CSA à Ergo-L
- Hard Clojure
2025
- Skyscraper sheaves
- On direct limits, and computing them from cofinal subsets
- On the cotangent space on a smooth manifold, defined from its structure sheaf
- Characteristic classes (Part 1, Cohomology)
- A description for the ideal generated by the symmetric polynomials in two variables
- The dominance order on partitions
- Galois connections
- The determinant of a matrix is just the product of its columns
- Filters are generalized subsets
2023
- Le radical est l'intersection des idéaux maximaux
- L'existence et l'unicité de l'expansion en série de Laurent