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arXiv 1107.5706math.CO
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$(0.5,n)$的平铺-交叉和完全码

Tilings by $(0.5,n)$-Crosses and Perfect Codes

Sarit Buzaglo, Tuvi Etzion

摘要:

$n$维欧氏空间的十字拼接的存在性问题是众所周知的。一些存在性和不存在性的结果是已知的文献。特别令人感兴趣的是欧几里得空间的十字形镶嵌,其臂长为1,也称为半径为1的李球。这样的镶嵌形成了一个完美的代码。在本文中,交叉与武器的长度一半。这些十字被缩放2以形成离散形状。我们证明了这样一个形状的整数平铺存在当且仅当$n=2^t-1$或$n=3^t-1$,$t>0$。一个强有力的连接,这些平铺的二进制和三进制完美的代码在汉明计划。

英文摘要:

The existence question for tiling of the $n$-dimensional Euclidian space by crosses is well known. A few existence and nonexistence results are known in the literature. Of special interest are tilings of the Euclidian space by crosses with arms of length one, known also as Lee spheres with radius one. Such a tiling forms a perfect code. In this paper crosses with arms of length half are considered. These crosses are scaled by two to form a discrete shape. We prove that an integer tiling for such a shape exists if and only if $n=2^t-1$ or $n=3^t-1$, $t>0$. A strong connection of these tilings to binary and ternary perfect codes in the Hamming scheme is shown.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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