This here is a random collection of things; maybe useful for others, maybe not.

## Mathematics

- Einleitung zu Éléments de géométrie algébrique

My German translation of the excellent introduction to the 1971 Springer edition of EGA. - Mumford’s picture of Spec(ℤ[X])

This LaTeX version is due to Pieter Belmans. - My fork of pydflatex

Python wrapper for pdflatex that hides the auxiliary files and only prints out information that’s actually useful. - Math genealogy graph

My math genealogy graph and infos how to get it - Benchmarks of computer algebra systems

Some timings of computations in different computer algebra systems - Hironaka’s example of a complete but non-projective variety

A write-up of Hironaka’s famous example

## Other

- Summits

List of summits I’ve “climbed”. - Photography

Some pictures I’ve taken. - Theoretical statistics for chess endgames with up to five pieces