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• W270497159 abstract "Recently I have proved that every odd integer q there exists integers t and s (dependent on q) so that there is an Hadamard matrix of order 2tq and a symmetric Hadamard matrix with constant diagonal order 2s q2. We conjecture that for every odd integer q there exists an integer t (dependent on q) so that there is a skewHadamard matrix of order 2tq”. This paper makes progress toward proving this conjecture. In particular we prove the result when q = 5 (mod 8) = s2 + 4r2 is a prime power and all orthogonal designs of type (l, a, b, c, c+│r│), where 1+a+b+2c+│r│ = 2t, exist in order 2t. Disciplines Physical Sciences and Mathematics Publication Details Seberry, J, On skew Hadamard matrices, Ars. Combinatoria, 6, 1978, 255-276. This journal article is available at Research Online: http://ro.uow.edu.au/infopapers/988 ON SKEW HADAMARD MATRICES" @default.
• W270497159 created "2016-06-24" @default.
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• W270497159 date "1978-01-01" @default.
• W270497159 modified "2023-09-27" @default.
• W270497159 title "On skew Hadamard matrices" @default.
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