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Matchings extend to Hamiltonian cycles in hypercubes with faulty edges

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Abstract

We consider the problem of existence of a Hamiltonian cycle containing a matching and avoiding some edges in an n-cube Qn; and obtain the following results. Let n ⩾ 3; ME(Qn); and FE(Qn)M with 1 ⩽ |F| ⩽ 2n − 4 − |M|: If M is a matching and every vertex is incident with at least two edges in the graph QnF; then all edges of M lie on a Hamiltonian cycle in QnF: Moreover, if |M| = 1 or |M| = 2; then the upper bound of number of faulty edges tolerated is sharp. Our results generalize the well-known result for |M| = 1

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Acknowledgements

The work was supported by the National Natural Science Foundation of China (Grant No. 11401290).

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Correspondence to Xie-Bin Chen.

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Chen, XB. Matchings extend to Hamiltonian cycles in hypercubes with faulty edges. Front. Math. China 14, 1117–1132 (2019). https://doi.org/10.1007/s11464-019-0810-8

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  • DOI: https://doi.org/10.1007/s11464-019-0810-8

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