Necessary and Sufficient Conditions for Some Two Variable Orthogonal Designs in Order 44

Koukouvinos, C

dc.contributor.author	Koukouvinos, C	en
dc.date.accessioned	2014-03-01T01:44:26Z
dc.date.available	2014-03-01T01:44:26Z
dc.date.issued	1996	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/24367
dc.subject	circulant matrices	en
dc.subject	Necessary and Sufficient Condition	en
dc.subject	Orthogonal Design	en
dc.title	Necessary and Sufficient Conditions for Some Two Variable Orthogonal Designs in Order 44	en
heal.type	journalArticle	en
heal.publicationDate	1996	en
heal.abstract	We give a new algorithm which allows us to construct new sets of sequences withentries from the commuting variables 0; \Sigma a; \Sigma b; \Sigma c; \Sigma d with zero autocorrelationfunction.We show that for twelve cases if the designs exist they cannot be constracted usingfour circulant matrices in the Goethals-Seidel array.Further we show that the necessary conditions for the existence	en