Figure 1From: On the sum of the two largest Laplacian eigenvalues of unicyclic graphs \(\pmb{G_{n+1,n}}\) . \(G_{m,n}\) is a graph of order n with m edges which has \(m-n+1\) triangles with a common edge and \(2n-m-3\) pendent edges incident with one end vertex of the common edge.Back to article page