New Symmetric Designs from Regular Hadamard Matrices

New Symmetric Designs from Regular Hadamard Matrices
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常规 Hadamard 矩阵的新对称设计

DOI:
10.37236/1339
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发表时间:
1997
期刊:
Electron. J. Comb.
影响因子:
--
通讯作者:
Yury J. Ionin
Yury J. Ionin
中科院分区:
--
文献类型:
--
作者:
Yury J. Ionin

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对于每一个正整数$m$,我们构造了一个对称$(v,k,\lambda)$-设计,其中参数$v={{h((2 h-1)^{2 m}-1)}\over{h-1}}$,$k=h(2 h-1)^{2 m-1}$,$\lambda =h(h-1)(2 h-1)^{2 m-2}$,其中$h=\pm 3\cdot 2^d$,$|2h-1| $是一个主要的权力。对于$m\geq 2$和$d\geq 1$,这些参数值以前是未确定的。在构造中使用的工具是平衡的广义加权矩阵和定期阿达玛矩阵的顺序$9\cdot 4^d$。
For every positive integer $m$, we construct a symmetric $(v,k,\lambda )$-design with parameters $v={{h((2h-1)^{2m}-1)}\over{h-1}}$, $k=h(2h-1)^{2m-1}$, and $\lambda =h(h-1)(2h-1)^{2m-2}$, where $h=\pm 3\cdot 2^d$ and $|2h-1|$ is a prime power. For $m\geq 2$ and $d\geq 1$, these parameter values were previously undecided. The tools used in the construction are balanced generalized weighing matrices and regular Hadamard matrices of order $9\cdot 4^d$.