A cycle C is a vertex-dominating cycle if every vertex is adjacent to some vertex of C. Bondy and Fan [4] showed that if G is a 2-connected graph with δ(G) ≥ 1/3(|V(G)| - 4), then G has a vertex-dominating cycle. In this paper, we prove that if G is a 2-connected bipartite graph with partite sets V₁ and V₂ such that δ(G) ≥ 1/3(max{|V₁|,|V₂|} + 1), then G has a vertex-dominating cycle.
@article{bwmeta1.element.bwnjournal-article-doi-10_7151_dmgt_1364, author = {Tomoki Yamashita}, title = {Vertex-dominating cycles in 2-connected bipartite graphs}, journal = {Discussiones Mathematicae Graph Theory}, volume = {27}, year = {2007}, pages = {323-332}, zbl = {1133.05051}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_7151_dmgt_1364} }
Tomoki Yamashita. Vertex-dominating cycles in 2-connected bipartite graphs. Discussiones Mathematicae Graph Theory, Tome 27 (2007) pp. 323-332. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_7151_dmgt_1364/
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