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SIAM Journal on Discrete Mathematics
Article . 2004 . Peer-reviewed
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Precoloring Extensions of Brooks' Theorem

Precoloring extensions of Brooks' theorem
Authors: Michael O. Albertson; Alexandr V. Kostochka; Douglas B. West;

Precoloring Extensions of Brooks' Theorem

Abstract

Summary: Let \(G\) be a connected graph with maximum degree \(k\) (other than a complete graph or odd cycle), let \(W\) be a precolored set of vertices in \(G\) inducing a subgraph \(F\), and let \(D\) be the minimum distance in \(G\) between components of \(F\). If the components of \(F\) are complete graphs and \(D\geq 8\) (for \(k\geq 4\)) or \(D\geq 10\) (for \(k = 3\)), then every proper \(k\)-coloring of \(F\) extends to a proper \(k\)-coloring of \(G\). If the components of \(F\) are single vertices and \(D\geq 8\), and the vertices outside \(W\) are assigned color lists of size \(k\), then every \(k\)-coloring of \(F\) extends to a proper coloring of \(G\) with the color on each vertex chosen from its list. These results are sharp.

Related Organizations
Keywords

list coloring, Coloring of graphs and hypergraphs, coloring extension

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
14
Average
Top 10%
Average
bronze