Optimal binary subspace codes of length 6, constant dimension 3 and minimum distance 4

Optimal binary subspace codes of length 6, constant dimension 3 and minimum distance 4
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DOI:
10.1090/conm/632/12627
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发表时间:
2013-11
期刊:
arXiv: Combinatorics
影响因子:
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通讯作者:
T. Honold;Michael Kiermaier;Sascha Kurz
T. Honold;Michael Kiermaier;Sascha Kurz
中科院分区:
其他
文献类型:
--
作者:
T. Honold;Michael Kiermaier;Sascha Kurz

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它表明,一个二元子空间码的包长度$v=6$,最小子空间距离$d=4$,和常数维数$k=3$的最大大小是$M=77$;在有限几何术语,在$\operatorname{PG}(5,2)$相交在最多一个点的平面的最大数量是$77$。最佳二元$(v,M,d;k)=(6,77,4;3)$子空间码被分类为$5$同构类型,并提供了一种同构类型的计算机免费构造。这种构造使用了几何和有限域理论,并推广到任何q,产生了一类新的q元(6,q^6 +2q^2+ 2 q +1,4;3)子空间码。
It is shown that the maximum size of a binary subspace code of packet length $v=6$, minimum subspace distance $d=4$, and constant dimension $k=3$ is $M=77$; in Finite Geometry terms, the maximum number of planes in $\operatorname{PG}(5,2)$ mutually intersecting in at most a point is $77$. Optimal binary $(v,M,d;k)=(6,77,4;3)$ subspace codes are classified into $5$ isomorphism types, and a computer-free construction of one isomorphism type is provided. The construction uses both geometry and finite fields theory and generalizes to any $q$, yielding a new family of $q$-ary $(6,q^6+2q^2+2q+1,4;3)$ subspace codes.