TY - JOUR AU - Akiko Ito TI - On certain infinite families of imaginary quadratic fields whose Iwasawa $\lambda $-invariant is equal to 1 JO - Acta Arithmetica PY - 2015 SP - 301 EP - 339 VL - 168 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa168-4-1/ DO - 10.4064/aa168-4-1 LA - en ID - 10_4064_aa168_4_1 ER -