Séminaires : Séminaire de géométrie algébrique

Equipe(s) : tga,
Responsables :
Email des responsables : frederic.han@imj-prg.fr
Salle : http://www.imj-prg.fr/tga/sem-ga
Adresse :
Description

La page officielle du Séminaire

Le jeudi à 14h.
septembre-décembre Sophie-Germain, janvier-mars ENS, avril-juin Jussieu

La liste de diffusion


Orateur(s) Ivan Smith - Cambridge,
Titre (BBB en ligne) - Monodromy and irrationality for cubic threefolds
Date02/04/2020
Horaire14:00 à 15:00
Diffusion
Résume

Online conference. Please ask for the access code by writing an email to Olivier Debarre.

 

We will show that the homological monodromy of the universal family of cubic threefolds, which takes values in the symplectic group Sp(10,Z), does not factor through the standard symplectic representation of the genus five mapping class group. We will explain why this is philosophically related to the well-known irrationality of cubic threefolds, and how it fits into a family of related questions which may be of interest in geometric group theory.

Sallehttp://www.imj-prg.fr/tga/sem-ga
Adresse
© IMJ-PRG