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Construction of symmetric Hadamard matrices of order $4v$ for $v=47,73,113$. (arXiv:1710.03037v1 [math.CO])
来源于:arXiv
We continue our systematic search for symmetric Hadamard matrices based on
the so called propus construction. In a previous paper this search covered the
orders $4v$ with odd $v\le41$. In this paper we cover the cases
$v=43,45,47,49,51$. The odd integers $v<120$ for which no symmetric Hadamard
matrices of order $4v$ are known are the following:
$$47,59,65,67,73,81,89,93,101,103,107,109,113,119.$$ By using the propus
construction, we found several symmetric Hadamard matrices of order $4v$ for
$v=47,73,113$. 查看全文>>