我是刘炫德，纽约大学石溪分校数学系 数学系研究生
目前对双有理几何比较感兴趣，除此之外最近在尝试学习infinity categories
但是由于本人天赋平庸，所以见识浅薄
个人邮箱: liuxuande@pku.edu.cn
以下是我在学习过程中记下的一些笔记
I am Xuande Liu, a graduate student in Mathematic department, StonyBrook University.
I take interests in birational geometry. Besides, I am learning infinity categories recently.
Due to my limited intelligence, I know very little about mathematics.
Email: liuxuande@pku.edu.cn
Here are some short notes.
