{"?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-SKSZN34B/CEC0B7DD-AE59-46F0-8D72-3E7A79ED3910/PDF","dcterms:extent":"0 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-SKSZN34B/43b2d664-1a1e-448f-9b1a-13dd4c32119d/PDF","dcterms:extent":"255 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-SKSZN34B/7ce8cadb-8721-42b8-bff5-85346c83da90/TEXT","dcterms:extent":"18 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-SKSZN34B","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-UP1WMFAR"},{"@xml:lang":"sl","#text":"Ars mathematica contemporanea"}],"dcterms:issued":"2013","dc:creator":["Das, Kinkar Chandra","Graovac, Ante","Lee, Dae-Won"],"dc:format":[{"@xml:lang":"sl","#text":"številka:1"},{"@xml:lang":"sl","#text":"letnik:6"},{"@xml:lang":"sl","#text":"str. 117-125"}],"dc:identifier":["COBISSID:16470873","ISSN:1855-3966","URN:URN:NBN:SI:doc-SKSZN34B"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Društvo matematikov, fizikov in astronomov Slovenije"},"dc:subject":[{"@xml:lang":"en","#text":"diameter"},{"@xml:lang":"en","#text":"eccentricity"},{"@xml:lang":"en","#text":"first Zagreb eccentricity index"},{"@xml:lang":"en","#text":"graph"},{"@xml:lang":"en","#text":"second Zagreb eccentricity index"}],"dcterms:temporal":{"@rdf:resource":"2008-2025"},"dc:title":{"@xml:lang":"sl","#text":"Some properties of the Zagreb eccentricity indices|"},"dc:description":{"@xml:lang":"sl","#text":"The concept of Zagreb eccentricity (?$E_1$? and ?$E_2$?) indices was introduced in the chemical graph theory very recently. The first Zagreb eccentricity ?($E_1$)? and the second Zagreb eccentricity ?($E_2$)? indices of a graph ?$G$? are defined as ?$$E_1 = E_1(G) = \\sum_{v_i \\in V(G)} e_i^2$$? and ?$$E_2 = E_2(G) = \\sum_{v_i v_j \\in E(G)} e_i \\cdot e_j \\;,$$? where ?$E(G)$? is the edge set and ?$e_i$? is the eccentricity of the vertex ?$v_i$? in ?$G$?. In this paper we give some lower and upper bounds on the first Zagreb eccentricity and the second Zagreb eccentricity indices of trees and graphs, and also characterize the extremal graphs"},"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-SKSZN34B","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:doc-SKSZN34B"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:doc-SKSZN34B/CEC0B7DD-AE59-46F0-8D72-3E7A79ED3910/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-SKSZN34B/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:doc-SKSZN34B"}}}}