TY - JOUR AU - Antonio Córdoba AU - Diego Córdoba AU - Marco A. Fontelos TI - Formation of singularities for a transport equation with nonlocal velocity JO - Annals of mathematics PY - 2005 SP - 1377 EP - 1389 VL - 162 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4007/annals.2005.162.1377/ DO - 10.4007/annals.2005.162.1377 LA - en ID - 10_4007_annals_2005_162_1377 ER -