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Xue, Jie; Lin, Huiqiu; Liu, Shuting; Shu, Jinlong
Linear algebra and its applications, 08/2018, Letnik: 550Journal Article
Let G be a graph with adjacency matrix A(G) and let D(G) be the diagonal matrix of the degrees of G. For any real α∈0,1, Nikiforov 3 defined the matrix Aα(G) asAα(G)=αD(G)+(1−α)A(G). The largest eigenvalue of Aα(G) is called the Aα-spectral radius of G. In this paper, we give three edge graft transformations on Aα-spectral radius. As applications, we determine the unique graph with maximum Aα-spectral radius among all connected graphs with diameter d, and determine the unique graph with minimum Aα-spectral radius among all connected graphs with given clique number. In addition, some bounds on the Aα-spectral radius are obtained.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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