摘 要: | All graph considered In this paper are undirected and finite,without loops ormultip1e edges.A graph is called claw-free if it does not contain a copy of K_(1,3)as an induced subgraph.For a graph C,let δ(G)denote the minimum degree of G.There have been a great many results in recent years dealing with longest cycles.for example, M.Matthews and D.Summer have shown the following result:
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