AG – séminaire dématérialisé : Carolina Araujo (IMPA – Brazil) : Special subgroups of the Cremona group via Calabi-Yau pairs
The Cremona group in dimension n is the subgroup of birational transformation of the projective space IP^n. Describing the structure of the Cremona group is a major problem in algebraic geometry. While the theory is well developed in dimension 2,