Tight upper bound on the number of edges
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Zhi-Zhong Chen; Shiqing Zhang
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Article
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2002
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Elsevier Science
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English
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We show that an n-vertex bipartite K 3,3 -free graph with n 3 has at most 2n -4 edges and that an n-vertex bipartite K 5 -free graph with n 5 has at most 3n -9 edges. These bounds are also tight. We then use the bound on the number of edges in a K 3,3 -free graph to extend two known NC algorithms fo