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arXiv 1312.7589math.CO
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$λ$ = 2的最优二维光正交码的组合构造

Combinatorial constructions for optimal two-dimensional optical orthogonal codes with $λ$ = 2

Tao Feng, Yanxun Chang

摘要:

本文研究了$λ$ = 2的最优二维光正交码。给出了一些组合构造,得到了许多重量为4,$λ$ = 2的最优二维光正交码的无限族.特别是,我们将看到,在许多情况下,一个最佳的二维光学正交码不能达到约翰逊界。

英文摘要:

In this paper, we are concerned about optimal two-dimensional optical orthogonal codes with $λ$ = 2. Some combinatorial constructions are presented and many infinite families of optimal two-dimensional optical orthogonal codes with weight 4 and $λ$ = 2 are obtained. Especially, we shall see that in many cases an optimal two-dimensional optical orthogonal code can not achieve the Johnson bound.

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