Abstract
A forbidden transition graph is a graph defined together with a set of permitted transitions i.e. unordered pair of adjacent edges that one may use consecutively in a walk in the graph. In this paper, we look for the smallest set of transitions needed to be able to go from any vertex of the given graph to any other. We prove that this problem is NP-hard and study approximation algorithms. We develop theoretical tools that help to study this problem.
B. Bergougnoux—This work is supported by French Agency for Research under the GraphEN project (ANR-15-CE-0009).
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Acknowledgments
The authors would like to thank Marthe Bonamy, Mamadou M. Kanté, Arnaud Pêcher, Théo Pierron and Xuding Zhu for the interest they showed for our work and for inspiring discussions.
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Bellitto, T., Bergougnoux, B. (2018). On Minimum Connecting Transition Sets in Graphs. In: Brandstädt, A., Köhler, E., Meer, K. (eds) Graph-Theoretic Concepts in Computer Science. WG 2018. Lecture Notes in Computer Science(), vol 11159. Springer, Cham. https://doi.org/10.1007/978-3-030-00256-5_4
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