L’algèbre n’est qu’une géométrie écrite, la géométrie n’est qu’une algèbre figurée. — Sophie Germain
rapha
Recent activities
- Published post The subobject classifier in the category of representations of a monoid
- Published post On subobject classifiers
- Published post The many faces of Nakayama’s Lemma
- Published post On integral morphisms
- Published post On algebras over a ring
- Published post On the cotangent space on a smooth manifold, defined from its structure sheaf
- Published post On direct limits, and computing them from cofinal subsets
- Published post Skyscraper sheaves
- Published post A characteristic feeling: exploring characteristic classes - Part 1, cohomology
- Published post The dominance order on partitions
- Published post A simpler description for the ideal generated by the symmetric polynomials in two variables
- Published post Galois connections: examples and theory
- Published post Making determinants my friends
- Published post Filters are generalized subsets, and other small remarks on filters
- Registered an account