TY - JOUR AU - Ryuji Sasaki AU - Keisuke Toki TI - Determination of Fermat varieties with trivial Hasse-Witt map (an application of the Farey series) JO - Acta Arithmetica PY - 1991 SP - 381 EP - 401 VL - 59 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa-59-4-381-401/ DO - 10.4064/aa-59-4-381-401 LA - en ID - 10_4064_aa_59_4_381_401 ER -