{"?xml":{"@version":"1.0"},"edm:RDF":{"@xmlns:dc":"http://purl.org/dc/elements/1.1/","@xmlns:edm":"http://www.europeana.eu/schemas/edm/","@xmlns:wgs84_pos":"http://www.w3.org/2003/01/geo/wgs84_pos","@xmlns:foaf":"http://xmlns.com/foaf/0.1/","@xmlns:rdaGr2":"http://rdvocab.info/ElementsGr2","@xmlns:oai":"http://www.openarchives.org/OAI/2.0/","@xmlns:owl":"http://www.w3.org/2002/07/owl#","@xmlns:rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","@xmlns:ore":"http://www.openarchives.org/ore/terms/","@xmlns:skos":"http://www.w3.org/2004/02/skos/core#","@xmlns:dcterms":"http://purl.org/dc/terms/","edm:WebResource":[{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-PSXSMIXG/254c8cd3-ee01-4535-b212-a4ef708061c3/PDF","dcterms:extent":"415 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-PSXSMIXG/5e43c5e1-1f22-458f-8da0-ecaf2a7b398f/TEXT","dcterms:extent":"35 KB"}],"edm:TimeSpan":{"@rdf:about":"2008-2025","edm:begin":{"@xml:lang":"en","#text":"2008"},"edm:end":{"@xml:lang":"en","#text":"2025"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:doc-PSXSMIXG","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-UP1WMFAR"},{"@xml:lang":"sl","#text":"Ars mathematica contemporanea"}],"dcterms:issued":"2017","dc:creator":"Jovanović, Irena M.","dc:format":[{"@xml:lang":"sl","#text":"številka:1"},{"@xml:lang":"sl","#text":"letnik:12"},{"@xml:lang":"sl","#text":"str. 167-182"}],"dc:identifier":["COBISSID:18097753","ISSN:1855-3966","URN:URN:NBN:SI:doc-PSXSMIXG"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Univerza na Primorskem, Fakulteta za matematiko, naravoslovje in informacijske tehnologije"},"dc:subject":[{"@xml:lang":"sl","#text":"digraf"},{"@xml:lang":"sl","#text":"grafi"},{"@xml:lang":"sl","#text":"izomorfizem"},{"@xml:lang":"sl","#text":"kospektralnost"},{"@xml:lang":"sl","#text":"multigraf"},{"@xml:lang":"sl","#text":"nenegativni spekter"}],"dcterms:temporal":{"@rdf:resource":"2008-2025"},"dc:title":{"@xml:lang":"sl","#text":"Non-negative spectrum of a digraph|"},"dc:description":[{"@xml:lang":"sl","#text":"Digraphs are considered by means of eigenvalues of the matrix ?$AA^T$?, and similarly ?$A^T A$?, where ?$A$? is the adjacency matrix of a digraph. The common spectrum of these matrices is called non-negative spectrum or ?$N$?-spectrum of a digraph. Several properties of the ?$N$?-spectrum are proved. The notion of cospectrality is generalized, and some examples of cospectral (multi)(di)graphs are constructed"},{"@xml:lang":"sl","#text":"Digrafe obravnavamo s pomočjo lastnih vrednosti matrike ?$AA^T$?, in podobno ?$A^T A$?, kjer je ?$A$? matrika sosednosti digrafa. Skupni spekter teh matrik se imenuje nenegativni spekter ali ?$N$?-spekter digrafa. Dokažemo več lastnosti ?$N$?-spektra. Posplošimo pojem kospektralnosti in konstruiramo nekaj primerov kospektralnih (multi)(di)grafov"}],"edm:type":"TEXT","dc:type":[{"@xml:lang":"sl","#text":"znanstveno časopisje"},{"@xml:lang":"en","#text":"journals"},{"@rdf:resource":"http://www.wikidata.org/entity/Q361785"}]},"ore:Aggregation":{"@rdf:about":"http://www.dlib.si/?URN=URN:NBN:SI:doc-PSXSMIXG","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:doc-PSXSMIXG"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:doc-PSXSMIXG/254c8cd3-ee01-4535-b212-a4ef708061c3/PDF"},"edm:rights":{"@rdf:resource":"http://creativecommons.org/licenses/by/4.0/"},"edm:provider":"Slovenian National E-content Aggregator","edm:intermediateProvider":{"@xml:lang":"en","#text":"National and University Library of Slovenia"},"edm:dataProvider":{"@xml:lang":"sl","#text":"Univerza na Primorskem, Fakulteta za naravoslovje, matematiko in informacijske tehnologije"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:doc-PSXSMIXG/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:doc-PSXSMIXG"}}}}