Figure 20
(a) The 2V23V2 (8×1, 1×2) b chain graph; (b) a unit-distance graph produced by embedding the chain graph in (a) in 2D, which forces a T⋯T separation less than γ (red ellipse); (c) a unit-distance graph produced by embedding the chain graph in (a) in 3D; (d) the 2V23V2, (4×1, 1×2, 2×21) b chain graph; (e) a unit-distance graph produced by embedding the chain graph in (d) in 2D, which forces a T⋯T separation less than γ (red ellipse); (f) a unit-distance graph produced by embedding the chain graph in (d) in 3D. Legend as in Fig. 18. |