Calvin Khor

Personal blog about mathematics, programming, and technology

I'm looking for interesting opportunities: check out my resume. PhD in Mathematics.

Happily married to Xiaoyan Su!

Newest Blog Post

May 7, 2026

Let be a separable Hilbert space over . Graphs Definition: the graph of an operator is the vector subpsace of given by Lemma: is the...

Publications, notes, teaching materials, and translations.

Thoughts and tutorials about mathematics, programming, and technology.

My open source projects and contributions.