代数幾何学セミナー

過去の記録 ~04/29次回の予定今後の予定 04/30~

開催情報 金曜日 13:30~15:00 数理科学研究科棟(駒場) ハイブリッド開催/117号室
担当者 權業 善範、中村 勇哉、田中 公

2023年06月28日(水)

13:30-15:00   数理科学研究科棟(駒場) ハイブリッド開催/056号室
(6/27更新) 講演者の都合で中止となりました。
松澤 陽介 氏 (大阪公立大学)
Preimages question and dynamical cancellation
[ 講演概要 ]
Pulling back an invariant subvariety by a self-morphism on projective variety, you will get a tower of increasing closed subsets. Working over a number field, we expect that the set of rational points contained in this increasing subsets eventually stabilizes. I am planning to discuss several results on this problem, such as the case of etale morphisms, morphisms on the product of two P^1. I will also present some counter examples that occur when we drop some of the assumptions. This work is based on a joint work with Matt Satriano and Jason Bell, and recent work in progress with Kaoru Sano.