New orthogonal designs of order 56
β Scribed by H. Evangelaras; S. Georgiou; C. Koukouvinos
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 90 KB
- Volume
- 10
- Category
- Article
- ISSN
- 1063-8539
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β¦ Synopsis
Abstract
Amicable sets of eight matrices are very useful in the construction of orthogonal designs using the Kharaghani array. In this article we use a simple procedure to construct many new amicable sets of eight matrices of order 7 and then new orthogonal designs of order 56. Some of these are restricted to be short amicable sets of two or four circulant matrices.. Β© 2002 Wiley Periodicals, Inc. J Combin Designs 10: 387β393, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/jcd.10030
π SIMILAR VOLUMES
## Abstract Although it is known that the maximum number of variables in two amicable orthogonal designs of order 2^__n__^__p__, where __p__ is an odd integer, never exceeds 2__n__+2, not much is known about the existence of amicable orthogonal designs lacking zero entries that have 2__n__+2 variab
## Abstract For the existence problem of __OGDDs__ of type __g^u^__, Colbourn and Gibbons settled it with few possible exceptions for each group size __g__. In this article, we will completely settle it for __g__ββ€β6. Β© 2006 Wiley Periodicals, Inc. J Combin Designs
Let N ( n ) denote the maximum number of mutually orthogonal Latin squares of order n. It is shown that N(35) 2 5.