The orthoplex faces are constructed from the Coxeter group Dn−1 and have a Schlafli symbol of {31,n−1,1} rather than the regular {3n−2,4}.
•
In geometry, a uniform k21 polytope is a polytope in k + 4 dimensions constructed from the Coxeter group, and having only regular polytope facets.
•
The family was named by Coxeter as k21 by its bifurcating Coxeter–Dynkin diagram, with a single ring on the end of the k-node sequence.
Uniform Code of Military Justice | Battle Dress Uniform | Army Service Uniform | British Army uniform and equipment in World War I | Uniform Crime Reports | Uniform Certified Public Accountant Examination | Army Combat Uniform | Uniform Resource Locator | polytope | Uniform Rights of the Terminally Ill Act | Uniform resource locator | Uniform resource identifier | Uniform Premarital Agreement Act | uniform polytope | Uniform Evaluation | Uniform distribution | Uniform Determination of Death Act | Uniform civil number | Uniform Act | Team Norway's uniform | School uniform | school uniform | Royal Air Force uniform | patrol officer's uniform | military uniform | Mädchen in Uniform | Japanese school uniform | Colo-Colo's uniform at 1991 Copa Libertadores Finals | Catholic school uniform | battle dress uniform |