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Subgraph construction

On November 24th, 2007 Anonymous says:

For any rational $ r\in[4,4.5) $, there is a subgraph $ H_r $ of the odd-distance graph with $ \chi_c(H_r)=r $

[1] Pan Zhi-Shi, Roussel Nicolas, Subgraphs of the odd-distance graph with given circular chromatic number, manuscript

NR.

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