TY - JOUR
T1 - New extremal doubly-even [64, 32, 12] codes
AU - Harada, Masaaki
AU - Kimura, Hiroshi
PY - 1995/9
Y1 - 1995/9
N2 - In this paper, we consider a general construction of doubly-even self-dual codes. From three symmetric 2-(31, 10, 3) designs, we construct at least 3228 inequivalent extremal doubly-even [64, 32, 12] codes. These codes are distinguished by their K-matrices.
AB - In this paper, we consider a general construction of doubly-even self-dual codes. From three symmetric 2-(31, 10, 3) designs, we construct at least 3228 inequivalent extremal doubly-even [64, 32, 12] codes. These codes are distinguished by their K-matrices.
KW - extremal codes
KW - generator matrices and symmetric designs
KW - self-dual codes
UR - http://www.scopus.com/inward/record.url?scp=1642526602&partnerID=8YFLogxK
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U2 - 10.1007/BF01398007
DO - 10.1007/BF01398007
M3 - Article
AN - SCOPUS:1642526602
SN - 0925-1022
VL - 6
SP - 91
EP - 96
JO - Designs, Codes, and Cryptography
JF - Designs, Codes, and Cryptography
IS - 2
ER -