%0 Journal Article %T CJM volume 77 issue 6 Cover and Front matter %J Canadian journal of mathematics %D 2025 %P f1-f4 %V 77 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/S0008414X25101818/ %R 10.4153/S0008414X25101818 %F 10_4153_S0008414X25101818