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Article
Graphs with Two Crossings Are 5-Choosable
SIAM Journal on Discrete Mathematics
(2011)
Abstract
A graph G is k-choosable if G can be properly colored whenever every vertex has a
list of at least k available colors. Thomassen’s theorem states that every planar graph is 5-choosable.
We extend the result by showing that every graph with at most two crossings is 5-choosable.
Keywords
- choosability,
- graph coloring,
- crossing number
Disciplines
Publication Date
2011
DOI
10.1137/11082703X
Publisher Statement
Copyright 2011 Society for Industrial and Applied Mathematics
Citation Information
Zdeněk Dvořák, Bernard Lidicky and Riste Škrekovski. "Graphs with Two Crossings Are 5-Choosable" SIAM Journal on Discrete Mathematics Vol. 25 Iss. 4 (2011) p. 1746 - 1753 Available at: http://works.bepress.com/bernard-lidicky/6/
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