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Welcome to my lecture notes page!
"The best way to learn a new topic is to write a book about it." Paraphrase from Serge Lang, See "Serge Lang, 1927-2005".
This page will collect some of the lecture notes, tutorials, and expository articles that I write.
There is an older version of this page where I collected some lecture notes. However, I regret making it too complicated and poorly organized. In this new version, I aim to keep it clean and minimalistic. Starting this year, I will try to write more lecture notes. I hope to make most of them available as LaTeX PDFs, though some may still be handwritten.
Miscellanea
Beautiful mathematics eventually tends to be useful, and useful mathematics eventually tends to be beautiful.
The main image at the top features Victoria Theatre in Singapore, which I photographed during the Spring Festival in 2025.