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- W2023776467 abstract "Abstract In this paper we introduce a numerical invariant of digraphs which generalizes that of the number of connected components of a graph. The acyclic disconnection ω (D) of a digraph D is the minimum number of (weakly) connected components of the subdigraphs obtained from D by deleting an acyclic set of arcs. We state some results about this invariant and compute its value for a variety of circulant tournaments. Relations between the dichromatic number and the acyclic disconnection of digraphs are explored and a generalization of the second invariant is presented." @default.
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- W2023776467 title "The acyclic disconnection of a digraph" @default.
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- W2023776467 doi "https://doi.org/10.1016/s0012-365x(98)00266-0" @default.
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