| Equipe(s) : | aa, |
| Responsables : | Penka Georgieva, Ilia Itenberg. |
| Email des responsables : | |
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| Description |
| Orateur(s) | Grigory Mikhalkin - Université de Genève, |
| Titre | Separating semigroup of real curves and other questions from a 1-dimensional version of Hilbert's 16th problem |
| Date | 28/11/2019 |
| Horaire | 15:15 à 16:15 |
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| Résume | Kummer and Shaw have introduced the separating semigroup Sep(S) of a real curve S. The semigroup is made of topological multidegrees of totally real algebraic maps from S to the Riemann sphere and can be considered in the context of a 1-dimensional version of Hilbert's 16th problem. We'll explore this point of view and classify Sep(S) for curves of genera up to four. |
| Salle | 15-25-502 |
| Adresse | Jussieu |