The smallest number of vertices in a 2-arc-strong digraph without pair of arc-disjoint in- and out-branchings (Q2149881)

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The smallest number of vertices in a 2-arc-strong digraph without pair of arc-disjoint in- and out-branchings
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    The smallest number of vertices in a 2-arc-strong digraph without pair of arc-disjoint in- and out-branchings (English)
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    29 June 2022
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    arc-disjoint branchings
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    out-branching
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    in-branching
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    arc-connectivity
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