题目：Positivity of Hodge bundles of abelian varieties over function fields

报告人：袁新意教授

（美国加州大学伯克利分校）

Abstract : Given a semi-abelian scheme over a projective curve over a field of characteristic 0, the Hodge (vector) bundle  is known to be nef. However, in positive characteristics, the Hodge bundle can fail to be nef by an example of Moret-Bailly. Up to some simple operations on the semi-abelian scheme, we can even obtain a semi-abelian scheme with an ample Hodge bundle in some cases. We will also present some applications of this result.

时间：5月10日（周五）下午14:00-15：00

地点：565net必赢客户端本部教二楼 627 教室

联系人：童纪龙

欢迎全体师生积极参加！