Noether-Severi inequality and equality for irregular threefolds of general type 【I】

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:胡勇(上海交通大学)
:2023-03-20 09:00
:厦大海韵园实验楼110报告厅

报告人:胡勇上海交通大学)

 间:2023320900-1030

 点:厦大海韵园实验楼110报告厅

内容摘要:

The classical Noether-Severi inequality is an important inequality in the classification of irregular surfaces of general type. In this talk, I will introduce the optimal Noether-Severi inequality vol(X) \ge \frac{4}{3} \chi(\omega_{X}) for all smooth and irregular 3-folds $X$ of general type over C. For those 3-folds X attaining the equality, I will describe their canonical models and show that the topological fundamental group \pi_1(X) \simeq \ZZ^2. This is a joint work with Tong Zhang.

人简介

胡勇是上海交通大学长聘轨副教授。20176月于复旦大学获得博士学位,后在韩国KIAS从事博士后研究,2021年回国就职于上海交通大学。胡勇的研究领域是代数几何,在3维簇的分类问题中取得优秀的成果,已有多篇论文发表/接收在 J. Reine Angew. Math., J. Algebraic Geoemtry, Math. Res. Letters等杂志。

 

联系人:刘文飞