We study the 1-planar, quasi-planar, and fan-planar crossing number in comparison to the (unrestricted) crossing number of graphs. We prove that there are n-vertex 1-planar (quasi-planar, fan-planar) graphs such that any 1-planar (quasi-planar, fan-planar) drawing has crossings, while O crossings suffice in a crossing-minimal drawing without restrictions on local edge crossing patterns.
Crossing Numbers of Beyond-Planar Graphs
Montecchiani F.;
2019
Abstract
We study the 1-planar, quasi-planar, and fan-planar crossing number in comparison to the (unrestricted) crossing number of graphs. We prove that there are n-vertex 1-planar (quasi-planar, fan-planar) graphs such that any 1-planar (quasi-planar, fan-planar) drawing has crossings, while O crossings suffice in a crossing-minimal drawing without restrictions on local edge crossing patterns.File in questo prodotto:
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