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arXiv · 0704.0640

Skew-Hadamard matrices of orders 188 and 388 exist

Dragomir Z. Djokovic
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Abstract

We construct several difference families on cyclic groups of orders 47 and 97, and use them to construct skew-Hadamard matrices of orders 188 and 388. Such difference families and matrices are constructed here for the first time. The matrices are constructed by using the Goethals-Seidel array.

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Dragomir Z. Djokovic. 2008-03-26. Skew-Hadamard matrices of orders 188 and 388 exist. https://arxiv.org/abs/0704.0640

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