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Orbifold modification of complex analytic varieties

来源: 11-30

时间:Monday 14:00-16:00, Dec 2, 2024 Tuesday 14:00-16:00, Dec 3, 2024 Monday 14:00-16:00, Dec 9, 2024

地点:Shuangqing Complex Building

主讲人:WWenhao Ou

主讲人 / Speaker

欧文浩,副研究员

中国科学院数学与系统科学研究院

时间 / Time

Monday 14:00-16:00, Dec 2, 2024

Tuesday 14:00-16:00, Dec 3, 2024

Monday 14:00-16:00, Dec 9, 2024

地点 / Venue

B725 (Dec. 2/9)

C548 (Dec. 3)

Shuangqing Complex Building

课程介绍 / Description

The main objective of this lecture is to study reflexive sheaves on Kaehler varieties with klt singularities, which appear naturally in the theory of Minimal Model Program.Since klt singularities are quotient singularities in codimension 2, we will construct a modification, with quotient singularities only, which is an isomorphism in codimension 2. With such a modification, we can define orbifold Chern classes, and prove a Bogomolov inequality on them.

主讲人简介 / About the Speaker

欧文浩,中国科学院数学与系统科学研究院副研究员。2009至2013年就读于巴黎高师,巴黎七大。2015年在格勒诺布尔阿尔卑斯大学获博士学位。此后在波恩大学,加州大学洛杉矶分校访问学习,并于2019年加入中国科学院。欧文浩的研究方向为代数几何中的正性和流形分类问题。他的主要工作包括,刻画了拉格朗日纤维化的底空间;证明了Peternell的一般正性猜想;建立了三维开了流形的对数最小模型纲领;分类了第一陈类为零的叶状结构;刻画了带有正性的叶状结构等。

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