ABSTRACT
In March 1937 the following announcement appeared under the heading ‘Works
of Comrades’ in the newsletter sent to the members of X-Crise (Centre Polytech-
nicien d’Études Économiques. X-Crise. Bulletin Mensuel, 1935, No. 36: 57):
‘Our comrade Father Potron (90), PhD in Mathematics, will give six
lectures on:
The relations which exist between certain economic problems and some
fairly recent results of a mathematical theory.
