Let G be a graph with |V(G)| ≥ 10. We prove that if both G and G̅ are claw-free, then minΔ(G), Δ(G̅) ≤ 2. As a generalization of this result in the case where |V(G)| is sufficiently large, we also prove that if both G and G̅ are -free, then minΔ(G),Δ(G̅) ≤ r(t- 1,t)-1 where r(t-1,t) is the Ramsey number.
@article{bwmeta1.element.bwnjournal-article-doi-10_7151_dmgt_1280, author = {Shinya Fujita}, title = {On graphs G for which both g and G are claw-free}, journal = {Discussiones Mathematicae Graph Theory}, volume = {25}, year = {2005}, pages = {267-272}, zbl = {1106.05081}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_7151_dmgt_1280} }
Shinya Fujita. On graphs G for which both g and G̅ are claw-free. Discussiones Mathematicae Graph Theory, Tome 25 (2005) pp. 267-272. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_7151_dmgt_1280/
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