Uniform Polychora Project

The Uniform Polychora Project in geometry is a collaborative effort to recognize and standardize terms used to describe objects in higher-dimensional spaces. The project aims: to collect information about uniform polychora as well as information about uniform polytopes in dimension ≥ 4.; to enumerate the shapes; and eventually to make a complete list. Standard extensions and generalizations of terms and definitions allow a common vocabulary, and precise communication when necessary. While names for polychora are not entirely rigorous, the creation of formal or abstract names is highly desirable. Major contributors are Jonathan Bowers, Norman Johnson and George Olshevsky. John Conway and Michael Guy established by computer analysis that there are 64 convex nonprismatic uniform polychora, in the mid-1960s. Thorold Gosset completely enumerated the convex uniform polytopes with regular facets. The convex uniform polychora are listed at George Olshevsky's Uniform Polychora website The vast majority of the uniform polychora were discovered by Bowers, with the Uniform Polychora Project finding the rest for a total of 8190 uniform polychora outside the infinite families of prismatic polychora. There are only 64 which are convex uniform polychora with the other 8126 being nonconvex uniform polychora. As to be expected, less is known about uniform polytopes in the higher spatial dimensions. Many of the terms for polychora were recently created by the prinicipal Project researchers. Terms include:

External links

*Glossary for Hyperspace

 

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