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On negative cycles in mixed graphs - MaRDI portal

On negative cycles in mixed graphs (Q1071027)

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scientific article; zbMATH DE number 3937202
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English
On negative cycles in mixed graphs
scientific article; zbMATH DE number 3937202

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    On negative cycles in mixed graphs (English)
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    1985
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    It is shown that for mixed graphs, i.e., graphs having both directed and undirected edges, with a length function defined on the edges, the problems of detecting negative cycles and of finding the shortest path in the absence of negative cycles are NP-complete.
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    algorithm
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    mixed graphs
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    negative cycles
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    shortest path
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    NP-complete
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