Powers of geometric intersection graphs
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Geir Agnarsson; Peter Damaschke; MagnΓΊs M. HalldΓ³rsson
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Article
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2003
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Elsevier Science
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English
β 188 KB
We study powers of certain geometric intersection graphs: interval graphs, m-trapezoid graphs and circular-arc graphs. We deΓΏne the pseudo-product, (G; G ) β G \* G , of two graphs G and G on the same set of vertices, and show that G \* G is contained in one of the three classes of graphs mentioned