Geometry and combinatorics of snc divisors (2)

par Thomas Dedieu (Institut de Mathématiques de Toulouse)

jeudi 19 nov. 2026, 08:45 → 09:45 Europe/Paris

PELLOS (1R2-207) (IMT)

In part 1 we have seen what are cone complexes and how one can attach a cone complex to a pair $(X,D)$ consisting of a variety and a divisor.

In part 2 we will see:
1. the geometric information encoded in the cone complex;
2. the map between cone complexes induced by a map of pairs;
3. some operations on pairs that can be encoded in terms of cone complexes.

If time permits (lol), we will start part 3 already, which will be dedicated to the fundamental particular case when the pair is the moduli space of stable maps and its boundary divisor.