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Open Accesshttps://doi.org/10.1016/s0021-9800(70)80087-4
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Cite Journal: Journal of Combinatorial Theory |  Publication Date: Dec 1, 1970 |
 Citations: 181 |  License type: elsevier-specific: oa user license |
Affiliation: Massachusetts Institute of Technology, University of Calgary
Several arguments are presented which provide restrictions on the possible number of crossings in drawings of bipartite graphs. In particular it is shown that cr(K 5,n) =4[1/2 n][1/2( n−1)] and cr(K 6,n) =6[1/2 n][1/2( n−1)].
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