Let n ≥ 2. We look for three n x n matrices A,B,C over the non-negative integers with the following properties:
Several techniques have found solutions of the above problem, but not really systematically, and all requiring quite some computation time. Moreover, we should like to know the smallest n for which there is a solution.
Hans Zantema (H.Zantema@tue.nl)
|DIAMANT home page||last update: 24 October 2005||DIAMANT problems page||send us an email|