Erik Christensen's retirement lecture
Title: Fifty years with mathematics
Abstract: I met Euclidian geometry in the plane when I was 12, and I was happy to learn to make small sketches which described facts about geometrical figures and then give exact proofs based on such drawings. Since then concrete mathematical problems and abstract mathematical ideas has taken up a good part of my time, but I have been distracted by love, wife, children, housekeeping, teaching, administration and so on. I will tell a little about some of the experiences I have had.
After the lecture, the Department of Mathematical Sciences hosts a reception in Erik Christensen's honour at 15:00 in the lunch room on the 4th floor (04.4.19).