Extremal doubly-even codes of length 64 derived from symmetric designs

Extremal doubly-even codes of length 64 derived from symmetric designs
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来自对称设计的长度为 64 的极值双偶码

DOI:
10.1016/0012-365x(90)90012-7
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发表时间:
1990
期刊:
Discret. Math.
影响因子:
--
通讯作者:
V. Tonchev
V. Tonchev
中科院分区:
--
文献类型:
--
作者:
S. Kapralov;V. Tonchev

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任何对称的2-(31,10,3)设计都会产生长度为64的二进制自对偶双偶码,并且该码是极值的当且仅当该设计不具有任何椭圆[15]。研究了已知的无椭圆对称2-(31,10,3)设计的码及其自同构群。结果表明,6个已知的这样的设计导致4个不等价的极值码,一个码具有2阶全自同构群。
Any symmetric 2-(31,10,3) design gives rise to a binary self-dual doubly-even code of length 64, and the code is extremal if and only if the design does not possess any ovals [15]. Codes derived from the known symmetric 2-(31, 10, 3) designs without ovals and their automorphism groups are investigated. It is shown that the 6 known such designs lead to 4 inequivalent extremal codes, one code having full automorphism group of order 2.
-调查-关于长度为72的极值双偶自对偶码
DOI: --
发表时间: 2006
期刊:
影响因子: --
作者:
H.;Takagi;Tatsuro Ito;高木寛通;Akihiro Munemasa;Eiichi Bannai;Hiroshi Suzuki;Michio Ozeki;坂内 英一;坂内 英一(坂内悦子と連名);鈴木 寛;坂内 英一;Masaaki Harada
通讯作者: Masaaki Harada