TY - JOUR AU - Arrondo Esteban, Enrique AU - Bertolini, Marina AU - Turrini, Cristina PY - 2001 SN - 1093-6106 UR - https://hdl.handle.net/20.500.14352/58405 T2 - Asian journal of mathematics AB - Congruences of lines in P3, i.e. two-dimensional families of lines, and their focal surfaces, have been a popular object of study in classical algebraic geometry. They have been considered recently by several authors as Arrondo, Goldstein, Sols,... LA - eng M2 - 535 PB - International Press KW - congruence of lines in P3 KW - fundamental point KW - bitangent line KW - bisecant line KW - inflectional line KW - focal surface of a smooth congruence TI - A focus on focal surfaces TY - journal article VL - 5 ER -