Jan Draisma

Professor of Mathematics

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3 November 2025: Schläfli lecture by Kathlén Kohn.

Teaching

Discrete Mathematics

This course is taught for the first time in the Fall of 2006, by Benne de Weger and myself. See also the course information. I try to put my notes here:
  1. The real projective plane
  2. Projective spaces and group actions
  3. The cross ratio and some block designs
  4. Summary and some exercises
  5. Solutions to typical exercises
I found a very funny lecture on the history of design theory, a bit of which we have seen through projective spaces. It can be found here. A lot on design theory (more serious stuff) can be found here.