Séminaires : Géométrie énumérative

Equipe(s) : aa,
Responsables :Penka Georgieva, Ilia Itenberg.
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Description

Orateur(s) Kris Shaw - University of Oslo,
Titre A tropical approach to the enriched count of bitangents to quartic curves
Date24/02/2022
Horaire15:30 à 16:30
Diffusion
RésumeUsing A1 enumerative geometry Larson and Vogt have provided an enriched count of the 28 bitangents to a quartic curve. In this talk, I will explain how these enriched counts can be computed combinatorially using tropical geometry. I will also introduce an arithmetic analogue of Viro's patchworking for real algebraic curves which, in some cases, retains enough data to recover the enriched counts. This talk is based on joint work with Hannah Markwig and Sam Payne.
Salle15-16-413
AdresseJussieu
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