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arXiv · 1311.0137

Nearly Planar Graphs and λ-flat Graphs

Alexander Grigoriev·Athanassios Koutsonas·Dimitrios M. Thilikos
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Abstract

A graph G is ξ-nearly planar if it can be embedded in the sphere so that each of its edges is crossed at most ξ times. The family of ξ-nearly planar graphs is widely extending the notion of planarity. We introduce an alternative parameterized graph family extending the notion of planarity, the λ-flat graphs, this time defined as powers of plane graphs in regard to a novel notion of distance, the wall-by-wall distance. We show that the two parameterized graph classes are parametrically equivalent.

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Alexander Grigoriev, Athanassios Koutsonas, Dimitrios M. Thilikos. 2013-11-01. Nearly Planar Graphs and λ-flat Graphs. https://arxiv.org/abs/1311.0137

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