About this journal

Moonshine Mathematics is a record of one person learning mathematics alone, in the small hours, mostly from books. I write here for the same reason a sailor keeps a log: to remember the route, to notice the weather, and so that if I am ever lost, I can find my way back to where the trouble began.

My interest is in math of all types. The name of the journal comes from the monstrous-moonshine conjecture, which is what motivated me to learning higher mathematics.

Posts here are not lessons. They are entries in the library of my mind. Thus, not everything I saw is well put, or even correct. When I feel that a post of mine does not reflect my current view, I will mark it.

Name

Work in progress ;)

Begun

on the new moon, November 2025

Currently reading

Rudin, "Principles of Mathematical Analysis"

Pace

roughly one entry per lunar cycle

Hours kept

22:00 — 03:00, irregular

Correspondence

gershgorindisk@gmail.com

If something here is wrong, please tell me. The best way to learn is slow and steady.