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On the Crossing Number of Honeycomb Related Networks

Bharati Rajan1, Indra Rajasingh!2, P.Vasanthi Beulah
1Department of Mathematics, Loyola College, Chennai 600 034, India
2Department of Mathematics, Queen Mary’s College, Chennai 600 034, India

Abstract

The crossing number of a graph \( G \) is the minimum number of crossings of its edges among the drawings of \( G \) in the plane and is denoted by \( \operatorname{cr}(G) \). In this paper, we obtain bounds for the crossing number for two different honeycomb tori, namely, the honeycomb rectangular torus and the honeycomb rhombic torus, which are obtained by adding wraparound edges to honeycomb meshes.

Keywords: crossing number, honeycomb rectangular torus, honeycomb rhom- bic torus.