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Decidable, polynomial-time, and np-complete cases of the isotone bipartite graph problem

✍ Scribed by V. G. Timkovskii; L. V. Knyazeva


Publisher
Springer US
Year
1991
Tongue
English
Weight
844 KB
Volume
26
Category
Article
ISSN
1573-8337

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NP completeness of the edge precoloring
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## Abstract We show that the following problem is __NP__ complete: Let __G__ be a cubic bipartite graph and __f__ be a precoloring of a subset of edges of __G__ using at most three colors. Can __f__ be extended to a proper edge 3‐coloring of the entire graph __G__? This result provides a natural co