Inequivalent Hadamard matrices from near normal sequences

Kotsireas, IS; Koukouvinos, C; Simos, DE

dc.contributor.author	Kotsireas, IS	en
dc.contributor.author	Koukouvinos, C	en
dc.contributor.author	Simos, DE	en
dc.date.accessioned	2014-03-01T01:59:44Z
dc.date.available	2014-03-01T01:59:44Z
dc.date.issued	2010	en
dc.identifier.issn	08353026	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29026
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-78651567379&partnerID=40&md5=5f9fa4b7bec0f44c2dc5d1781728dbd6	en
dc.subject	Autocorrelation function	en
dc.subject	Base sequences	en
dc.subject	Classification	en
dc.subject	Hadamard matrices	en
dc.subject	Near normal sequences	en
dc.subject	T-matrices	en
dc.subject	T-sequences	en
dc.subject	Yang multiplication methods	en
dc.subject.other	Autocorrelation functions	en
dc.subject.other	Base sequences	en
dc.subject.other	Classification	en
dc.subject.other	Hadamard matrices	en
dc.subject.other	Normal sequences	en
dc.subject.other	T-matrices	en
dc.subject.other	T-sequences	en
dc.subject.other	Yang multiplication methods	en
dc.subject.other	Autocorrelation	en
dc.subject.other	Regression analysis	en
dc.subject.other	Classification (of information)	en
dc.title	Inequivalent Hadamard matrices from near normal sequences	en
heal.type	journalArticle	en
heal.publicationDate	2010	en
heal.abstract	In this paper, we construct inequivalent Hadamard matrices based on Yang multiplication methods for base sequences which are obtained from near normal sequences. This has been achieved byemploying various Unix tools and sophisticated techniques, such as metaprogramming. In addition, we present a classification for near normal sequences of length An + 1, for n ≤ 11 and some of these for n = 12, 13, 14 and 15, taking into account previously known results. Finally, we improve several constructive lower bounds for inequivalent Hadamard matrices of large orders.	en
heal.journalName	Journal of Combinatorial Mathematics and Combinatorial Computing	en
dc.identifier.volume	75	en
dc.identifier.spage	105	en
dc.identifier.epage	115	en