Séminaires : Séminaire Géométrie énumérative

Equipe(s) : aa, tga,
Responsables :Penka Georgieva, Elba Garcia-Failde, Ilia Itenberg, Alessandro Chiodo
Email des responsables : penka.georgieva@imj-prg.fr
Salle : 1516 - 413
Adresse :Jussieu
Description

URL: https://webusers.imj-prg.fr/~penka.georgieva/EGSeminar.html

Orateur(s) Sergey Finashin - Ankara, Middle East Technical University,
Titre On wall-crossing invariant combinations of Welschinger numbers for rational surfaces with a conic bundle
Date27/11/2025
Horaire14:00 à 15:00
Diffusion
Résume

We refine the real enumerative invariants not sensitive to changing the real structure that we elaborated in our previous paper for del Pezzo surfaces, and extend these refined invariants to arbitrary rational surfaces. The definition requires a choice of an auxiliary conic bundle and of a Pin−-structure, and one of our goals is proving independence of our invariants of these choices.

(A joint work with V. Kharlamov.)

Salle15-25-502
AdresseJussieu
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