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General Lower Bounds for the Minor Crossing Number of Graphs

There are three general lower bound techniques for the crossing numbers of graphs: the Crossing Lemma, the bisection method and the embedding method. In this contribution, we present their adaptations to the minor crossing number. Using the adapted bounds, we improve on the known bounds on the minor...

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Bibliographic Details
Published in:Discrete & computational geometry 2010-09, Vol.44 (2), p.463-483
Main Authors: Bokal, Drago, Czabarka, Éva, Székely, László A., Vrt’o, Imrich
Format: Article
Language:English
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Summary:There are three general lower bound techniques for the crossing numbers of graphs: the Crossing Lemma, the bisection method and the embedding method. In this contribution, we present their adaptations to the minor crossing number. Using the adapted bounds, we improve on the known bounds on the minor crossing number of hypercubes. We also point out relations of the minor crossing number to string graphs and establish a lower bound for the standard crossing number in terms of Randič index.
ISSN:0179-5376
1432-0444
DOI:10.1007/s00454-010-9245-4