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A Note on the Complexity of One-Sided Crossing Minimization of Trees

Published 27 Jun 2023 in cs.CC | (2306.15339v1)

Abstract: In 2011, Harrigan and Healy published a polynomial-time algorithm for one-sided crossing minimization for trees. We point out a counterexample to that algorithm, and show that one-sided crossing minimization is NP-hard for trees.

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