Introduction. |
The 24-Cell, with Dodecagonal Ghost Symmetry.
Ideally, this model has two shadows each having 12-fold dihedral symmetry. This occurs despite the fact that the symmetry group of the 3-dimensional model does not contain this group. In fact, the symmetry group of the physical model is merely a direct product of three copies of the 2-element group C_{2}. The action is generated by the reflections across the three coordinate planes. In other words, each coordinate plane acts like a mirror: |
DR with Ghastly 24-Cell
The A(4) Root System. |
The A(4) Root System, with Decagonal Ghost Symmetry.
Index to Balls and Straws
Index to Polyhedra
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