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Graphs with no induced wheel or antiwheel
Published 26 Feb 2015 in math.CO and cs.DM | (1502.07484v1)
Abstract: A wheel is a graph that consists of a chordless cycle of length at least 4 plus a vertex with at least three neighbors on the cycle. It was shown recently that detecting induced wheels is an NP-complete problem. In contrast, it is shown here that graphs that contain no wheel and no antiwheel have a very simple structure and consequently can be recognized in polynomial time.
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