{"?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-S091JR6E/94822b42-34b0-4c72-8d00-2998a2579071/PDF","dcterms:extent":"263 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-S091JR6E/e17dc0b8-59a5-4e6b-9186-6c527dd17846/TEXT","dcterms:extent":"20 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-S091JR6E","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-UP1WMFAR"},{"@xml:lang":"sl","#text":"Ars mathematica contemporanea"}],"dcterms:issued":"2020","dc:creator":["Ghorbani, Ebrahim","Haemers, Willem H.","Maimani, Hamid Reza","Parsaei Majd, Leila"],"dc:format":[{"@xml:lang":"sl","#text":"številka:1"},{"@xml:lang":"sl","#text":"letnik:19"},{"@xml:lang":"sl","#text":"str. 83-93"}],"dc:identifier":["ISSN:1855-3974","COBISSID_HOST:43118083","URN:URN:NBN:SI:doc-S091JR6E"],"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":"predznačeni graf"},{"@xml:lang":"en","#text":"signed graph"},{"@xml:lang":"en","#text":"spectrum"},{"@xml:lang":"sl","#text":"spekter"}],"dcterms:temporal":{"@rdf:resource":"2008-2025"},"dc:title":{"@xml:lang":"sl","#text":"On sign-symmetric signed graphs|"},"dc:description":[{"@xml:lang":"sl","#text":"A signed graph is said to be sign-symmetric if it is switching isomorphic to its negation. Bipartite signed graphs are trivially sign-symmetric. We give new constructions of nonbipartite sign-symmetric signed graphs. Sign-symmetric signed graphs have a symmetric spectrum but not the other way around. We present constructions of signed graphs with symmetric spectra which are not sign-symmetric. This, in particular answers a problem posed by Belardo, CioabCioaba, Koolen, and Wang in 2018"},{"@xml:lang":"sl","#text":"Predznačeni graf se imenuje predznakovno simetričen, če je preklopno izomorfen svoji negaciji. Dvodelni predznačeni grafi so trivialno predznakovno simetrični. Predstavimo nove konstrukcije nedvodelnih predznakovno simetričnih predznačenih grafov. Predznakovno simetrični predznačeni grafi imajo simetričen spekter, obratno pa ne velja. Predstavimo konstrukcije predznačenih grafov s simetričnim spektrom, ki niso predznakovno simetrični. To reši tudi problem, ki so ga zastavili Belardo, Cioaba, Koolen in Wang leta 2018"}],"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-S091JR6E","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:doc-S091JR6E"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:doc-S091JR6E/94822b42-34b0-4c72-8d00-2998a2579071/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-S091JR6E/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:doc-S091JR6E"}}}}