Abstract
We give a combinatorial characterization of upward planar graphs in terms of upward planar orders, which are special linear extensions of edge posets.
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Acknowledgements
This work is partly supported by the National Scientific Foundation of China Nos. 11431010 and 11571329 and “the Fundamental Research Funds for the Central Universities.”
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Lu, X., Ye, Y. Combinatorial Characterization of Upward Planarity. Commun. Math. Stat. 7, 207–223 (2019). https://doi.org/10.1007/s40304-018-0169-2
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DOI: https://doi.org/10.1007/s40304-018-0169-2