Szekeres has established the ex:stence of a skew-Hadamard malrix of order 2(9 + 1) in the case 9 = 5 (mods), a prime power. His method utilized complemlcntary difference sets in the elementary abelian group of order 9. The main result of this paper is to show that, for the same 9, there exist skew-H
Skew Hadamard matrices of Goethals-Seidel type
β Scribed by Albert Leon Whittman
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 715 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0012-365X
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## Abstract We construct two difference families on each of the cyclic groups of order 109, 145, and 247, and use them to construct skewβHadamard matrices of orders 436, 580, and 988. Such difference families and matrices are constructed here for the first time. The matrices are constructed by usin
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