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The representation number of some sparse graphs. (English) Zbl 1251.05090
Summary: We study the representation number for some special sparse graphs. For graphs with a single edge and for complete binary trees we give an exact formula, and for hypercubes we improve the known lower bound. We also study the prime factorization of the representation number of graphs with one edge.

##### MSC:
 05C42 Density (toughness, etc.) 05C65 Hypergraphs 05C62 Graph representations (geometric and intersection representations, etc.)
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##### References:
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