Disclaimer:
"I am not Ringel"
In June 1986, when I arrived to Luminy,
in order to give an invited lecture about the relationship
between representation theory and combinatorics
(in honour of the 60th birthday of Claude
Berge), I was welcomed with the statement
and the lecture was canceled.
Claus Michael Ringel
Last modified: Tue Jun 5 11:28:28 CEST 2012