Koichi Betsumiya

Publication Activity (10 Years)

Years Active: 1999-2012
Publications (10 Years): 0

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Electron. J. Comb.

J. Lond. Math. Soc.

Publications

Koichi Betsumiya, Masaaki Harada, Akihiro Munemasa
A Complete Classification of Doubly Even Self-dual Codes of Length 40. Electron. J. Comb. 19 (3) (2012)
Koichi Betsumiya, Akihiro Munemasa
On triply even binary codes. J. Lond. Math. Soc. 86 (1) (2012)
Koichi Betsumiya, Masaaki Harada, Hiroshi Kimura
Hadamard matrices of order 32 and extremal ternary self-dual codes. Des. Codes Cryptogr. 58 (2) (2011)
Koichi Betsumiya, Rowena Alma L. Betty, Akihiro Munemasa
Mass Formula for Even Codes over. IMACC (2009)
Koichi Betsumiya
. Discret. Math. 308 (14) (2008)
Koichi Betsumiya, YoungJu Choie
, Jacobi forms and Hilbert-Siegel modular forms over Q(sqrt(5)). Eur. J. Comb. 26 (5) (2005)
Koichi Betsumiya, YoungJu Choie
Ozeki Polynomials and Jacobi Forms. Ars Comb. 77 (2005)
Koichi Betsumiya, Masaaki Harada
with respect to the Hamming weight. IEEE Trans. Inf. Theory 50 (2) (2004)
Koichi Betsumiya, YoungJu Choie
). Eur. J. Comb. 25 (4) (2004)
Koichi Betsumiya, San Ling, Fidel R. Nemenzo
. Discret. Math. 275 (1-3) (2004)
Koichi Betsumiya, Masaaki Harada
Formally Self-Dual Codes Related to Type II Codes. Appl. Algebra Eng. Commun. Comput. 14 (2) (2003)
Koichi Betsumiya, T. Aaron Gulliver, Masaaki Harada
. Des. Codes Cryptogr. 28 (2) (2003)
Koichi Betsumiya, Stelios Georgiou, T. Aaron Gulliver, Masaaki Harada, Christos Koukouvinos
On self-dual codes over some prime fields. Discret. Math. 262 (1-3) (2003)
Koichi Betsumiya, T. Aaron Gulliver, Masaaki Harada, Akihiro Munemasa
. IEEE Trans. Inf. Theory 47 (6) (2001)
Koichi Betsumiya, Masaaki Harada
Classification of Formally Self-Dual Even Codes of Lengths up to 16. Des. Codes Cryptogr. 23 (3) (2001)
Koichi Betsumiya, Masaaki Harada
Binary Optimal Odd Formally Self-Dual Codes. Des. Codes Cryptogr. 23 (1) (2001)
Koichi Betsumiya, Masaaki Harada, Akihiro Munemasa
. AAECC (2001)
Koichi Betsumiya, T. Aaron Gulliver, Masaaki Harada
Binary Optimal Linear Rate 1/2 Codes. AAECC (1999)