TY - JOUR AU - Mironescu, Petru AU - Molnar, Ioana TI - Phases of unimodular complex valued maps: optimal estimates, the factorization method, and the sum-intersection property of Sobolev spaces JO - Annales de l'I.H.P. Analyse non linéaire PY - 2015 SP - 965 EP - 1013 VL - 32 IS - 5 PB - Elsevier UR - http://www.numdam.org/articles/10.1016/j.anihpc.2014.04.005/ DO - 10.1016/j.anihpc.2014.04.005 LA - en ID - AIHPC_2015__32_5_965_0 ER -