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odd distance
Coloring the Odd Distance Graph ★★★
Author(s): Rosenfeld
The Odd Distance Graph, denoted , is the graph with vertex set
and two points adjacent if the distance between them is an odd integer.
Question Is
?
![$ \chi({\mathcal O}) = \infty $](/files/tex/cb1eb2f7a7c0eacc877dca7708d0e44b2835f0c2.png)
Keywords: coloring; geometric graph; odd distance
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