El Idrissi N, Kabbaj S, Moalige B. Path-connectedness and topological closure of some sets related to the non-compact Stiefel manifold. Proyecciones (Antofagasta, On line) [Internet]. 2023May9 [cited 2024Apr.25];42(3):571-97. Available from: https://www.revistaproyecciones.cl/index.php/proyecciones/article/view/4818