The Gr\"unbaum--Dress Polyhedra

Egon Schulte

Northeastern University

October 2,
refreshments at 3:45pm


Regular polyhedra have been investigated since antiquity. In ordinary euclidean 3-space, the class of regular polyhedra has been considerably extended to what are now called the Gr\"unbaum--Dress polyhedra. The talk presents a new approach to these polyhedra, which also leads to a quicker proof of the completeness of the enumeration than that found by Dress. Presentations of their symmetry groups will also be discussed. This is joint work with Peter McMullen.

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Combinatorics Seminar, Mathematics Department, MIT, sara(at-sign)

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