Independent sets which meet all longest paths (Q1917489)

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scientific article; zbMATH DE number 897573
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Independent sets which meet all longest paths
scientific article; zbMATH DE number 897573

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    Independent sets which meet all longest paths (English)
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    7 July 1996
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    A directed graph is said to have property \(P\) if it contains an independent set which meets every longest directed path. In 1982, \textit{J. M. Laborde}, \textit{Ch. Payan} and \textit{Nguyen Huy Xuong} [Teubner-Texte Math. 59, 173-177 (1983; Zbl 0528.05034)] conjectured that every directed graph has property \(P\). In this paper, the authors prove some sufficient conditions for a directed graph to have property \(P\).
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    property \(P\)
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    independent set
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    longest directed path
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