18-319f05.jpg
Description:
Two drawings of the Petersen graph (a - b) and the planar graph corresponding to the second drawing (c). (Image by Jacob Fox and Csaba Toth).
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18-319f05.jpg
Alt text:
(a-b) Petersen graphs.
Caption:
Two drawings of the Petersen graph (a - b) and the planar graph corresponding to the second drawing (c). (Image by Jacob Fox and Csaba Toth.)
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