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Product Description
This is a spatial model of Julius Petersen's graph, having 10 vertices and 15 edges. This model is notable for a couple reasons. First, it is framed using the geometry of a well-known spatial model of the projective space over GF(2). Second, it has no false intersections. That is, every pair of intersecting edges has only a common vertex as the intersection. Due to a theorem of Neil Robertson, Paul Seymour, and Robin Thomas, therefore, such a model must contain a pair of cycles which realize a Hopf link.
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