Skew-Hadamard matrices of orders 436, 580 and 988 exist

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dc.creatorDjokovic, Dragomir Z.
dc.date2007-06-13
dc.date.accessioned2026-07-07T12:52:58Z
dc.date.available2026-07-07T12:52:58Z
dc.descriptionWe construct two difference families on each of the cyclic groups of order 109, 145 and 247, and use them to construct skew-Hadamard matrices of orders 436, 580 and 988. Such difference families and matrices are constructed here for the first time. The matrices are constructed by using the Goethals-Seidel array.
dc.description12 pages, no figures
dc.identifierhttps://arxiv.org/abs/0706.1973
dc.identifierhttp://arxiv.org/abs/0706.1973
dc.identifierJ, Combin. Designs 16 (2008), 493-498
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/223467
dc.subjectCombinatorics
dc.subject05B20, 05B30
dc.titleSkew-Hadamard matrices of orders 436, 580 and 988 exist
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