a. w. walker is the personal blog of Alexander Walker, a Heilbronn fellow in mathematics at University College London.  This blog contains original mathematical exposition (and often, original math) poking into a great many fields. Typically, though, these articles reflect my principal research interest: number theory.

As a personal blog, this site will also post some content related to one of my interests, puzzlehunting and puzzle-writing.  In particular, I’ll be posting some of the puzzles that I’ve written and notes on puzzlehunts in which I’ve competed.