TY - JOUR AU - Rosa-Navarro, Brenda Leticia de la AU - Frías-Medina, Juan Bosco AU - Lahyane, Mustapha TI - On the effective, nef, and semi-ample monoids of blowups of Hirzebruch surfaces at collinear points JO - Canadian mathematical bulletin PY - 2023 SP - 1179 EP - 1193 VL - 66 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4153/S0008439523000255/ DO - 10.4153/S0008439523000255 ID - 10_4153_S0008439523000255 ER -