## Abstract In answer to โResearch Problem 16โ in Horadam's recent book __Hadamard matrices and their applications__, we provide a construction for generalized Hadamard matrices whose transposes are not generalized Hadamard matrices. ยฉ 2009 Wiley Periodicals, Inc. J Combin Designs 17: 456โ458, 2009
Cocyclic Hadamard Matrices and Hadamard Groups Are Equivalent
โ Scribed by D.L. Flannery
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 344 KB
- Volume
- 192
- Category
- Article
- ISSN
- 0021-8693
No coin nor oath required. For personal study only.
โฆ Synopsis
In this paper, we prove that the concepts of cocyclic Hadamard matrix and Hadamard group are equivalent. A general procedure for constructing Hadamard groups and classifying such groups on the basis of isomorphism type is given. To illustrate the ideas, cocyclic Hadamard matrices over dihedral groups are constructed and the corresponding Hadamard groups classified.
๐ SIMILAR VOLUMES
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