TY - JOUR AU - Jaco, William AU - Hyam Rubinstein, Joachim AU - Spreer, Jonathan AU - Tillmann, Stephan TI - Slope norm and an algorithm to compute the crosscap number JO - Algebraic and Geometric Topology PY - 2024 SP - 4307 EP - 4351 VL - 24 IS - 8 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.2140/agt.2024.24.4307/ DO - 10.2140/agt.2024.24.4307 ID - 10_2140_agt_2024_24_4307 ER -