摘要
GivengraphsG1andG2,wedefineagraphoperationonG1andG2,namelytheSSG-vertexjoinofG1andG2,denotedbyG1★G2.LetS(G)bethesubdivisiongraphofG.TheSSG-vertexjoinG1★G2.isthegraphobtainedfromS(G1)andS(G2)byjoiningeachvertexofG1witheachvertexof62-Inthispaper,whenGi(i=1,2)isaregulargraph,wedeterminethenormalizedLaplacianspectrumofG1★G2.Asapplications,weconstructmanypairsofnormalizedLaplaciancospectralgraphs,thenormalizedLaplacianenergy,andthedegreeKirchhoffindexofG1★G2.
出版日期
2018年04月14日(中国Betway体育网页登陆平台首次上网日期,不代表论文的发表时间)