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Tricyclic graphs with exactly two main eigenvalues
2013
Open Mathematics
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AbstractAn eigenvalue of a graph G is called a main eigenvalue if it has an eigenvector the sum of whose entries is not equal to zero. Let G 0 be the graph obtained from G by deleting all pendant vertices and δ(G) the minimum degree of vertices of G. In this paper, all connected tricyclic graphs G with δ(G 0) ≥ 2 and exactly two main eigenvalues are determined.
doi:10.2478/s11533-013-0283-z
fatcat:ugsqethjtndjrhpqopr7xndtli