Sur les relations des mathématiciens français et italiens au début du XXe siècle
This paper, through the publication of two of their letters, sheds light on the political positions of two influential mathematicians of the first half of the 20th century, the German Edmund Landau and the American Edwin Bidwell Wilson. It provides substantial evidence for the widespread rejection of the political boycott of German mathematics not only by the Germans but also by the community of American mathematicians in the early 1920s.