Other things possibly of some use

Octrees

I wrote a simple library in Python for working with octrees.

Some friends in the NHS may or may not end up using it to help model brachytherapy in peoples' heads.

Part III essay: Koszul duality

This, in PDF format, was my essay for Part III in Cambridge. It mostly follows the paper of Ginzburg and Kapranov, but is slower-paced and does bits of Priddy's original paper.

Sparse Ramsey Theory notes

Imre Leader gave a graduate course on Sparse Ramsey Theory in the Summer term of 2003. I devoted some time to typing up the notes; here they are in both DVI (92kb) and PDF (260kb).