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
Hadamard matrices of order 4(2p + 1)
β Scribed by Albert Leon Whiteman
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 506 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0022-314X
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In this paper all the so-called checkered Hadamard matrices of order 16 are determined (i.e., Hadamard matrices consisting of 16 square blocks H i j of order 4 such that H ii = J 4 and H i j J 4 = J 4 H i j = 0 for i = j and where J 4 is the all-one matrix of order 4). It is shown that the checkered
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