Humio ICHIMURA

Corrigendum to ``Real abelian fields satisfying the Hilbert-Speiser condition for some small primes p" 

Proccedings of the Japan Academy, Ser. A, 95(7) 80-82, Jul, 2019  Peer-reviewed

Note on class number parity of an abelian field of prime conductor, III 

Mathematical Journal of Ibaraki University, 51 39-48, Jul, 2019  Peer-reviewed

Note on class number parity of an abelian field of prime conductor, II 

Kodai Mathematical Journal, 42(1) 99-110, Mar, 2019  Peer-reviewed

Note on a congruence for the Fermat quotient with base 2 

Kyushu Journal of Mathematics, 73(1) 115-121, Feb, 2019  Peer-reviewed

Note on class number parity of an abelian field of prime conductor 

Mathematical Journal of Ibaraki University, 50 15-26, Aug, 2018  Peer-reviewedLast author

Triviality of Iwasawa module associated to some abelian fields of prime conductors 

Abhandlungen aus dem Mathematischen Seminar der Universitat Hamburg, 88(1) 51-66, Apr 1, 2018  Peer-reviewed

Note on the Class Number of the pth Cyclotomic Field, II 

Experimental Mathematics, 27(1) 111-118, Jan 2, 2018  Peer-reviewed

Note on the class number of the pth cyclotomic field, III 

Functiones et Approximatio Commentarii Mathematici, 57(1) 93-103, Sep, 2017  Peer-reviewed

Note on Bernoulli numbers associated to some Dirichlet character of prime conductor 

ARCHIV DER MATHEMATIK, 107(6) 595-601, Dec, 2016  Peer-reviewed

Real abelian fields satisfying the Hilbert-Speiser condition for some small primes p 

PROCEEDINGS OF THE JAPAN ACADEMY SERIES A-MATHEMATICAL SCIENCES, 92(1) 19-22, Jan, 2016  Peer-reviewed

Note on the class number of the pTH cyclotomic field 

Functiones et Approximatio, Commentarii Mathematici, 52(2) 299-309, Jul 1, 2015  Peer-reviewed

ON THE 2-ADIC IWASAWA LAMBDA INVARIANTS OF THE p-CYCLOTOMIC FIELDS AND THEIR QUADRATIC TWISTS 

INTERNATIONAL JOURNAL OF NUMBER THEORY, 10(2) 283-296, Mar, 2014  Peer-reviewed