Two - tough graphs and f - factors with given properties ∗
نویسندگان
چکیده
Let G be a 2-tough graph on at least five vertices and let e1, e2 be any two edges of G. Katerinis and Wang [6] showed that there exists a 2-factor in G including/excluding e1 and e2. In this paper, we generalize their result by considering the existence of an f -factor including/excluding e1 and e2, where f : V (G) → {1, 2}.
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