Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/11155
Registo completo
Campo DC | Valor | Idioma |
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dc.contributor.author | Araújo, C. Mendes | - |
dc.contributor.author | Torregrosa, Juan R. | - |
dc.contributor.author | Jordán, Cristina | - |
dc.date.accessioned | 2010-11-30T11:45:57Z | - |
dc.date.available | 2010-11-30T11:45:57Z | - |
dc.date.issued | 2009-05-15 | - |
dc.identifier.citation | "Applied Mathematics and Computation". ISSN 0096-3003. 211:2 (May 2009) 303-312. | por |
dc.identifier.issn | 0096-3003 | por |
dc.identifier.uri | https://hdl.handle.net/1822/11155 | - |
dc.description.abstract | An $n\times n$ matrix is called an $N_0$-matrix if all its principal minors are nonpositive. In this paper, we are interested in $N_0$-matrix completion problems, that is, when a partial $N_0$-matrix has an $N_0$-matrix completion. In general, a combinatorially or non-combinatorially symmetric partial $N_0$-matrix does not have an $N_0$-matrix completion. Here, we prove that a combinatorially symmetric partial $N_0$-matrix, with no null main diagonal entries, has an $N_0$-matrix completion if the graph of its specified entries is a 1-chordal graph or a cycle. We also analyze the mentioned problem when the partial matrix has some null main diagonal entries. | por |
dc.description.sponsorship | Fundação para a Ciência e a Tecnologia(FCT) através do programa POCTI | por |
dc.description.sponsorship | Spanish DGI grant number MTM2007-64477 | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier | por |
dc.rights | openAccess | por |
dc.subject | Partial matrix | por |
dc.subject | N_0-matrix | por |
dc.subject | Completion | por |
dc.subject | Chordal graphs | por |
dc.subject | Cycle | por |
dc.subject | Chordal graph | por |
dc.subject | N -matrix 0 | por |
dc.title | N_0 completions on partial matrices | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://www.sciencedirect.com/science/journal/00963003 | por |
sdum.number | 2 | por |
sdum.pagination | 303-312 | por |
sdum.publicationstatus | published | por |
sdum.volume | 211 | por |
oaire.citationStartPage | 303 | por |
oaire.citationEndPage | 312 | por |
oaire.citationIssue | 2 | por |
oaire.citationVolume | 211 | por |
dc.identifier.doi | 10.1016/j.amc.2009.01.063 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Applied Mathematics and Computation | por |
Aparece nas coleções: | CMAT - Artigos em revistas com arbitragem / Papers in peer review journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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N_0Completion.pdf | artigo | 176,98 kB | Adobe PDF | Ver/Abrir |