Lee, Loh, and Sudakov's conjecture on judicious bipartitions of digraphs
Let be a digraph with arcs and minimum outdegree at least an integer . For a bipartition , write for the number of arcs directed from to . Lee, Loh, and Sudakov's conjecture. Every such digraph admits a bipartition with
This conjecture addresses Scott's question about the largest constant guaranteeing a balanced directed cut in digraphs with prescribed minimum outdegree. The supplied source does not state whether the conjecture has been resolved.
References
Primary source
Jianfeng Hou, Huawen Ma, Xingxing Yu and Xia Zhang, “A bound on judicious bipartitions of directed graphs”, arXiv:1805.05506 (2018).
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