Séminaires : Géométrie énumérative

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

Orateur(s) Yanqiao Ding - IMJ-PRG et Zhengzhou University,
Titre Genus decreasing phenomenon of higher genus Welschinger invariants
Date27/09/2019
Horaire10:30 à 11:30
Résume

Shustin introduced an invariant of del Pezzo surfaces to count real curves of positive genera. By considering the properties of these invariants under Morse transformation, we found a genus decreasing phenomenon for these invariants.  In this talk, we will present a genus decreasing formula for these invariants and discuss possible generalization of it.

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