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Let D(G)=(di,j)n×n denote the distance matrix of a connected graph G with order n, where dij is equal to the distance between vi and vj in G. The largest eigenvalue of D(G) is called the distance spectral radius of graph G, denoted by ϱ(G). In this paper, some graft transformations that decrease or increase ϱ(G) are given. With them, for the graphs with both order n and k pendant vertices, the extremal...
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