Hello and welcome to The Singularity, a blog about mathematics and many other interesting things! My name is Yunhai Xiang (in Chinese: 项云海, pronounced “yee-o-en-hi si-ang”), he/him, and I also go by Daniel. I’m a grad student of pure mathematics at Western University. For more information, see my academic website.
I started this math blog when I was a third year undergraduate student as a motivation for myself to learn and a way of recording my learning progress. Here, I write expositions about the math that I learned recently. I also write about my recent projects, talks, thoughts, ideas, and many things outside math that I enjoy.