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On a refinement of Craig's lattices

dc.contributor.authorFlores, Andre Luiz
dc.contributor.authorInterlando, J. Carmelo
dc.contributor.authorda Nobrega Neto, Trajano Pires [UNESP]
dc.contributor.authorDantas Lopes, Jose Othon
dc.contributor.institutionSan Diego State Univ
dc.contributor.institutionUniversidade Federal de Alagoas (UFAL)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal do Ceará (UFC)
dc.date.accessioned2014-05-20T14:02:51Z
dc.date.available2014-05-20T14:02:51Z
dc.date.issued2011-06-01
dc.description.abstractLet p be an odd prime. A family of (p - 1)-dimensional over-lattices yielding new record packings for several values of p in the interval [149... 3001] is presented. The result is obtained by modifying Craig's construction and considering conveniently chosen Z-submodules of Q(zeta), where zeta is a primitive pth root of unity. For p >= 59, it is shown that the center density of the (p - 1)-dimensional lattice in the new family is at least twice the center density of the (p - 1)-dimensional Craig lattice. (C) 2010 Elsevier B.V. All rights reserved.en
dc.description.affiliationSan Diego State Univ, Dept Math & Stat, San Diego, CA 92182 USA
dc.description.affiliationUniversidade Federal de Alagoas (UFAL), Dept Matemat, BR-57309005 Arapiraca, AL, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Matemat, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.description.affiliationUniversidade Federal do Ceará (UFC), Dept Matemat, BR-60455760 Fortaleza, Ceara, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Matemat, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.description.sponsorshipFundação para o Desenvolvimento da UNESP (FUNDUNESP)
dc.description.sponsorshipIdFUNDUNESP: CCP 1649/09
dc.format.extent1440-1442
dc.identifierhttp://dx.doi.org/10.1016/j.jpaa.2010.09.004
dc.identifier.citationJournal of Pure and Applied Algebra. Amsterdam: Elsevier B.V., v. 215, n. 6, p. 1440-1442, 2011.
dc.identifier.doi10.1016/j.jpaa.2010.09.004
dc.identifier.issn0022-4049
dc.identifier.urihttp://hdl.handle.net/11449/22142
dc.identifier.wosWOS:000287911100021
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofJournal of Pure and Applied Algebra
dc.relation.ispartofjcr0.720
dc.relation.ispartofsjr1,269
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleOn a refinement of Craig's latticesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Biociências, Letras e Ciências Exatas, São José do Rio Pretopt
unesp.departmentMatemática - IBILCEpt

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