TY - JOUR TI - CJM volume 77 issue 1 Cover and Back matter JO - Canadian journal of mathematics PY - 2025 SP - b1 EP - b2 VL - 77 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4153/S0008414X25000082/ DO - 10.4153/S0008414X25000082 ID - 10_4153_S0008414X25000082 ER -