Koichi Betsumiya

18 papers C 1Journal 15Unranked 2
YearRankTypeTitle / Venue / Authors
2012 J jnl
A Complete Classification of Doubly Even Self-dual Codes of Length 40.
Electron. J. Comb.
Koichi Betsumiya, Masaaki Harada, Akihiro Munemasa
2012 J jnl
On triply even binary codes.
J. Lond. Math. Soc.
Koichi Betsumiya, Akihiro Munemasa
2011 J jnl
Hadamard matrices of order 32 and extremal ternary self-dual codes.
Des. Codes Cryptogr.
Koichi Betsumiya, Masaaki Harada, Hiroshi Kimura
2009 C conf
Mass Formula for Even Codes over.
IMACC
Koichi Betsumiya, Rowena Alma L. Betty, Akihiro Munemasa
2008 J jnl
Minimum Lee weights of Type II codes over
Discret. Math.
Koichi Betsumiya
2005 J jnl
Codes over F
Eur. J. Comb.
Koichi Betsumiya, YoungJu Choie
2005 J jnl
Ozeki Polynomials and Jacobi Forms.
Ars Comb.
Koichi Betsumiya, YoungJu Choie
2004 J jnl
Jacobi forms over totally real fields and type II codes over Galois rings GR(2
Eur. J. Comb.
Koichi Betsumiya, YoungJu Choie
2004 J jnl
Optimal self-dual codes over F
IEEE Trans. Inf. Theory
Koichi Betsumiya, Masaaki Harada
2004 J jnl
Type II codes over F
Discret. Math.
Koichi Betsumiya, San Ling, Fidel R. Nemenzo
2003 J jnl
Extremal Self-Dual Codes over F
Des. Codes Cryptogr.
Koichi Betsumiya, T. Aaron Gulliver, Masaaki Harada
2003 J jnl
Formally Self-Dual Codes Related to Type II Codes.
Appl. Algebra Eng. Commun. Comput.
Koichi Betsumiya, Masaaki Harada
2003 J jnl
On self-dual codes over some prime fields.
Discret. Math.
Koichi Betsumiya, Stelios Georgiou, T. Aaron Gulliver, Masaaki Harada, Christos Koukouvinos
2001 J jnl
Binary Optimal Odd Formally Self-Dual Codes.
Des. Codes Cryptogr.
Koichi Betsumiya, Masaaki Harada
2001 J jnl
Classification of Formally Self-Dual Even Codes of Lengths up to 16.
Des. Codes Cryptogr.
Koichi Betsumiya, Masaaki Harada
2001 J jnl
On type II codes over F
IEEE Trans. Inf. Theory
Koichi Betsumiya, T. Aaron Gulliver, Masaaki Harada, Akihiro Munemasa
2001 — conf
Type II Codes over F
AAECC
Koichi Betsumiya, Masaaki Harada, Akihiro Munemasa
1999 — conf
Binary Optimal Linear Rate 1/2 Codes.
AAECC
Koichi Betsumiya, T. Aaron Gulliver, Masaaki Harada