Abstract.
In this paper, we show the following two results.
(1). Let G be a 3-connected claw-free graph and H a subgraph of G with . Then G is H-connected (i.e., for any two vertices u and v in G, G has a path connecting u and v and containing all vertices of H). This result generalizes the result of Wu, Cha and Jin that G is Hamiltonian connected if the degree sum of any pairwise nonadjacent vertices is at least .
(2). Every k-connected claw-free graph on at most vertices is Hamiltonian connected. This result further extends the result of Z. Wu, Q. Cha and Y. Jin.
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Li, M. Hamiltonian Connectedness in Claw-Free Graphs. Graphs Comb 14, 45–58 (1998). https://doi.org/10.1007/s003730050014
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DOI: https://doi.org/10.1007/s003730050014