Equipe(s) : | tga, |
Responsables : | Cyril Demarche, Diego Izquierdo et Charles De Clercq |
Email des responsables : | |
Salle : | |
Adresse : | Campus Pierre et Marie Curie |
Description | Le séminaire a généralement lieu à Jussieu (Sorbonne Université, Paris), un vendredi par mois, entre 14h30 et 17h. |
Orateur(s) | Anand Sawant - Mumbai, |
Titre | Near-rationality properties of algebraic varieties via A^1-connectedness. |
Date | 26/03/2021 |
Horaire | 13:30 à 14:30 |
Diffusion | https://bigbluebutton.imj-prg.fr/b/cyr-94x-zup |
Résume | I will outline an argument proving that the standard norm variety associated with a symbol in mod-l Milnor K-theory is R-trivial over an algebraically closed field of characteristic 0. Rational connectedness of such standard norm varieties was previously known. This result is achieved by relating R-triviality and retract rationality properties of varieties with A^1-connectedness in the sense of Morel-Voevodsky and finding purely geometric criteria to determine A^1-connectedness. The talk is based on joint work with Chetan Balwe and Amit Hogadi. |
Salle | code d'accès : écrire à Cyril Demarche |
Adresse | https://bigbluebutton.imj-prg.fr/b/cyr-94x-zup |