Extending simple drawings with one edge is hard

Alan Arroyo, Fabian Klute, Irene Parada, Raimund Seidel, Birgit Vogtenhuber, Tilo Wiedera

Research output: Working paperPreprint


A simple drawing $D(G)$ of a graph $G = (V,E)$ is a drawing in which two edges have at most one point in common that is either an endpoint or a proper crossing. An edge $e$ from the complement of $ G $ can be inserted into $D(G)$ if there exists a simple drawing of $G' = (V, E\cup \{e\})$ containing $D(G)$ as a subdrawing. We show that it is NP-complete to decide whether a given edge can be inserted into a simple drawing, by this solving an open question by Arroyo, Derka, and Parada.
Original languageUndefined/Unknown
Number of pages10
Publication statusPublished - 16 Sept 2019

Publication series

NamearXiv.org e-Print archive
PublisherCornell University Library


  • cs.CG

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