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Some Hamiltonian Properties of One-Conflict Graphs

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Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 8986))

Abstract

Dirac’s and Ore’s conditions (1952 and 1960) are well known and classical sufficient conditions for a graph to contain a Hamiltonian cycle and they are generalized in 1976 by the Bondy-Chvátal Theorem. In this paper, we add constraints, called conflicts. A conflict in a graph G is a pair of distinct edges of G. We denote by \((G,\mathcal {C}onf)\) a graph G with a set of conflicts \(\mathcal {C}onf\). A path without conflict P in \((G,\mathcal {C}onf)\) is a path P in G such that for any edges \(e,e'\) of P, \(\{e,e'\}\notin \mathcal {C}onf\). In this paper we consider graph with conflicts such that each vertex is not incident to the edges of more than one conflict. We call such graphs one-conflict graphs. We present sufficient conditions for one-conflict graphs to have a Hamiltonian path or cycle without conflict.

B. Momège has a PhD grant from CNRS and région Auvergne.

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Notes

  1. 1.

    A subgraph such that for any vertex its in-degree and its out-degree is exactly one.

References

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Acknowledgements

We thank Mamadou M. Kanté and anonymous referees for reading and helping to improve a first version of this work.

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Correspondence to Benjamin Momège .

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Laforest, C., Momège, B. (2015). Some Hamiltonian Properties of One-Conflict Graphs. In: Jan, K., Miller, M., Froncek, D. (eds) Combinatorial Algorithms. IWOCA 2014. Lecture Notes in Computer Science(), vol 8986. Springer, Cham. https://doi.org/10.1007/978-3-319-19315-1_23

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  • DOI: https://doi.org/10.1007/978-3-319-19315-1_23

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-19314-4

  • Online ISBN: 978-3-319-19315-1

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