**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.

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