Published online by Cambridge University Press: 24 October 2008
In this paper it is shown how all the regular polytopes (including the Kepler-Poinsot polyhedra and Hess's analogous star polytopes in four dimensions) arise as rational solutions of trigonometrical equations.
* See Van Oss, S. L., “Die regelmässigen vierdimensionalen Polytopen höherer Art,” Verhandelingen Akad. Wet. Amsterdam, 12 (1915), No. 1.Google Scholar
* Math. Ann. 12 (1877), p. 35.Google Scholar
† In four dimensions, h′ < k 1 and h′ < k 3. In five dimensions, either k 1 < h′ < k 4 or k 1 = h′ = k 4 or k 1 > h′ > k 4.