b-coloring is NP-hard on co-bipartite graphs and polytime solvable on tree-cographs

A b-coloring of a graph is a proper coloring such that every color class contains a vertex that is adjacent to all other color classes. The b-chromatic number of a graph G, denoted by \chi_b(G), is the maximum number t such that G admits a b-coloring with t colors. A graph G is called b-continuous i...

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Vydané v:	arXiv.org
Hlavní autori:	Bonomo, Flavia, Schaudt, Oliver, Stein, Maya, Valencia-Pabon, Mario
Médium:	Paper
Jazyk:	English
Vydavateľské údaje:	Ithaca Cornell University Library, arXiv.org 10.01.2014
Predmet:	Algorithms Color Coloring Computing time Dynamic programming Graph theory Graphs Polynomials Stability Stability augmentation Trees (mathematics)
ISSN:	2331-8422
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