Hi! I am a professor in mathematics at Utrecht University. I have a website.

Some highlights of my work are:

• the infrastructure for the Stacks project (and Kerodon)
• Hodge diamond cutter
  • Twisted Hodge numbers for complete intersections
  • Twisted Hodge numbers for Hilbert schemes of points
• QuiverTools
• online classification websites:
  • Fanography: a tool to visually study the geography of Fano 3-folds
  • Grassmannian.info: a periodic table of (generalised) Grassmannians
  • Hyperkaehler.info: the geography of irreducible holomorphic symplectic (or hyperkähler) varieties
  • Mgnbar.info: the geometry of Mgnbar
  • superficie.info: interactive geography of (minimal) complex algebraic smooth surfaces
• bibgetter: automatically resolve MathSciNet and arXiv identifiers in LaTeX for bibliography management

On my profile you can find:

• the mathematical software that I wrote
• the mathematical websites that I maintain
• infrastructure to maintain your own Stacks project-like website