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More Routes for Evacuation

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Book cover Computing and Combinatorics (COCOON 2018)

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Abstract

In this paper, we consider the problem of enumerating spanning subgraphs with high edge-connectivity of an input graph. Such subgraphs ensure multiple routes between two vertices. We first present an algorithm that enumerates all the \(2\)-edge-connected spanning subgraphs of a given plane graph with n vertices. The algorithm generates each \(2\)-edge-connected spanning subgraph of the input graph in \({\text {O}}(n)\) time. We next present an algorithm that enumerates all the \(k\)-edge-connected spanning subgraphs of a given general graph with m edges. The algorithm generates each \(k\)-edge-connected spanning subgraph of the input graph in \({\text {O}}(mT)\) time, where T is the running time to check the k-edge-connectivity of a graph.

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Acknowledgement

This work was supported by JSPS KAKENHI Grant Numbers JP16K00002, JP17K00003, and JP18H04091.

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Correspondence to Katsuhisa Yamanaka .

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Yamanaka, K., Matsui, Y., Nakano, Si. (2018). More Routes for Evacuation. In: Wang, L., Zhu, D. (eds) Computing and Combinatorics. COCOON 2018. Lecture Notes in Computer Science(), vol 10976. Springer, Cham. https://doi.org/10.1007/978-3-319-94776-1_7

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  • DOI: https://doi.org/10.1007/978-3-319-94776-1_7

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  • Publisher Name: Springer, Cham

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