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Figure 25
The e-net edc42 embedded according to its edge geometry in the D surface. The midpoints of curved edges are marked by non-coincident yellow spheres. Barycentric embedding of edc42 in [{\bb E}^3] gives the s-net sqc900. Pairs of curved edges of edc42 collide, giving edge crossings (yellow spheres) in addition to the degree-6 (green) vertices.

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ISSN: 2053-2733
Volume 65| Part 2| January 2009| Pages 81-108
doi:10.1107/S0108767308040592
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