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Closure concepts for claw-free graphs

✍ Scribed by H.J. Broersma; H. Trommel

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 404 KB
Volume: 185
Category: Article
ISSN: 0012-365X
DOI: 10.1016/s0012-365x(97)00210-0

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## Abstract The circular chromatic number of a graph is a well‐studied refinement of the chromatic number. Circular‐perfect graphs form a superclass of perfect graphs defined by means of this more general coloring concept. This article studies claw‐free circular‐perfect graphs. First, we prove that