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List T-colorings of graphs

โœ Scribed by Barry A. Tesman


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
876 KB
Volume
45
Category
Article
ISSN
0166-218X

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A 2-assignment on a graph G (V,E) is a collection of pairs Lv of allowed colors speciยฎed for all vertices v PV. The graph G (with at least one edge) is said to have oriented choice number 2 if it admits an orientation which satisยฎes the following property: For every 2-assignment there exists a choic

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Given a finite set T of positive integers, with 0 E T, a T-coloring of a graph G = (V, E) is a functionf: V -+ No such that for each {x, y} E E If(x) -f(y)l#T. The T-span is the difference between the largest and smallest colors and the T-span of G is the minimum span over all T-colorings of G. We s