Bicantitruncated_6-orthoplex

Cantellated 6-orthoplexes

Cantellated 6-orthoplexes

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In six-dimensional geometry, a cantellated 6-orthoplex is a convex uniform 6-polytope, being a cantellation of the regular 6-orthoplex.

More information Orthogonal projections in B6 Coxeter plane ...

There are 8 cantellation for the 6-orthoplex including truncations. Half of them are more easily constructed from the dual 5-cube

Cantellated 6-orthoplex

Cantellated 6-orthoplex
Typeuniform 6-polytope
Schläfli symbolt0,2{3,3,3,3,4}
rr{3,3,3,3,4}
Coxeter-Dynkin diagrams

=

5-faces136
4-faces1656
Cells5040
Faces6400
Edges3360
Vertices480
Vertex figure
Coxeter groupsB6, [3,3,3,3,4]
D6, [33,1,1]
Propertiesconvex

Alternate names

  • Cantellated hexacross
  • Small rhombated hexacontatetrapeton (acronym: srog) (Jonathan Bowers)[1]

Construction

There are two Coxeter groups associated with the cantellated 6-orthoplex, one with the B6 or [4,3,3,3,3] Coxeter group, and a lower symmetry with the D6 or [33,1,1] Coxeter group.

Coordinates

Cartesian coordinates for the 480 vertices of a cantellated 6-orthoplex, centered at the origin, are all the sign and coordinate permutations of

(2,1,1,0,0,0)

Images

More information Coxeter plane, B6 ...

Bicantellated 6-orthoplex

More information Bicantellated 6-orthoplex ...

Alternate names

  • Bicantellated hexacross, bicantellated hexacontatetrapeton
  • Small birhombated hexacontatetrapeton (acronym: siborg) (Jonathan Bowers)[2]

Construction

There are two Coxeter groups associated with the bicantellated 6-orthoplex, one with the B6 or [4,3,3,3,3] Coxeter group, and a lower symmetry with the D6 or [33,1,1] Coxeter group.

Coordinates

Cartesian coordinates for the 1440 vertices of a bicantellated 6-orthoplex, centered at the origin, are all the sign and coordinate permutations of

(2,2,1,1,0,0)

Images

More information Coxeter plane, B6 ...

Cantitruncated 6-orthoplex

More information Cantitruncated 6-orthoplex ...

Alternate names

  • Cantitruncated hexacross, cantitruncated hexacontatetrapeton
  • Great rhombihexacontatetrapeton (acronym: grog) (Jonathan Bowers)[3]

Construction

There are two Coxeter groups associated with the cantitruncated 6-orthoplex, one with the B6 or [4,3,3,3,3] Coxeter group, and a lower symmetry with the D6 or [33,1,1] Coxeter group.

Coordinates

Cartesian coordinates for the 960 vertices of a cantitruncated 6-orthoplex, centered at the origin, are all the sign and coordinate permutations of

(3,2,1,0,0,0)

Images

More information Coxeter plane, B6 ...

Bicantitruncated 6-orthoplex

More information Bicantitruncated 6-orthoplex ...

Alternate names

  • Bicantitruncated hexacross, bicantitruncated hexacontatetrapeton
  • Great birhombihexacontatetrapeton (acronym: gaborg) (Jonathan Bowers)[4]

Construction

There are two Coxeter groups associated with the bicantitruncated 6-orthoplex, one with the B6 or [4,3,3,3,3] Coxeter group, and a lower symmetry with the D6 or [33,1,1] Coxeter group.

Coordinates

Cartesian coordinates for the 2880 vertices of a bicantitruncated 6-orthoplex, centered at the origin, are all the sign and coordinate permutations of

(3,3,2,1,0,0)

Images

More information Coxeter plane, B6 ...

These polytopes are part of a set of 63 uniform 6-polytopes generated from the B6 Coxeter plane, including the regular 6-cube or 6-orthoplex.


Notes

  1. Klitzing, (x3o3x3o3o4o - srog)
  2. Klitzing, (o3x3o3x3o4o - siborg)
  3. Klitzing, (x3x3x3o3o4o - grog)
  4. Klitzing, (o3x3x3x3o4o - gaborg)

References

  • H.S.M. Coxeter:
    • H.S.M. Coxeter, Regular Polytopes, 3rd Edition, Dover New York, 1973
    • Kaleidoscopes: Selected Writings of H.S.M. Coxeter, edited by F. Arthur Sherk, Peter McMullen, Anthony C. Thompson, Asia Ivic Weiss, Wiley-Interscience Publication, 1995, ISBN 978-0-471-01003-6
      • (Paper 22) H.S.M. Coxeter, Regular and Semi Regular Polytopes I, [Math. Zeit. 46 (1940) 380-407, MR 2,10]
      • (Paper 23) H.S.M. Coxeter, Regular and Semi-Regular Polytopes II, [Math. Zeit. 188 (1985) 559-591]
      • (Paper 24) H.S.M. Coxeter, Regular and Semi-Regular Polytopes III, [Math. Zeit. 200 (1988) 3-45]
  • Norman Johnson Uniform Polytopes, Manuscript (1991)
    • N.W. Johnson: The Theory of Uniform Polytopes and Honeycombs, Ph.D.
  • Klitzing, Richard. "6D uniform polytopes (polypeta)". x3o3x3o3o4o - srog, o3x3o3x3o4o - siborg, x3x3x3o3o4o - grog, o3x3x3x3o4o - gaborg
More information Family, Regular polygon ...

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