Contents

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Crossing Numbers of Nearly Complete Graphs and Nearly Complete Bipartite Graphs

Gek L.Chia1,2, Chan L.Lee3
1Department of Mathematical and Actuarial Sciences, Universiti Tunku Abdul Rahman, Jalan Genting Kelang, 53300 Setapak, Kuala Lumpur, Malaysia
2Institute of Mathematical Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
3NUS High School of Maths. & Science, 20 Clementi Avenue 1, Singapore, 129957

Abstract

We determine the crossing numbers (i) of the complete graph Kn with an edge deleted for n12 and (ii) of the complete bipartite graph Km,n with an edge deleted for m{3,4} and for all natural numbers n$, and also for the case m=n=5.