Thep-Ranks of Skew Hadamard Designs
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T.S. Michael
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Article
📅
1996
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Elsevier Science
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English
⚖ 146 KB
We use elementary linear algebra to prove that if p divides n, then the p-rank of a skew Hadamard (4n&1, 2n&1, n&1)-design is 2n. Our theorem generalizes and simplifies an extension by Jungnickel of a result of MacWilliams and Mann obtained using character theory.