Great duoantiprism

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Great duoantiprism
Type Uniform polychoron
Schläfli symbols s{5}s{5/3}
{5}⊗{5/3}
h{10}s{5/3}
s{5}h{10/3}
h{10}h{10/3}
Coxeter diagrams


Cells 50 (3.3.3)
10 (3.3.3.5)
10 (3.3.3.5/3)
Faces 200 {3}
10 {5}
10 {5/2}
Edges 200
Vertices 50
Vertex figure
star-gyrobifastigium
Symmetry group [5,2,5]+, order 50
[(5,2)+,10], order 100
[10,2+,10], order 200
Properties Vertex-uniform

Net (overlapping in space)

The great duoantiprism is the only uniform star-duoantiprism solution p=5, q=5/3, in 4-dimensional geometry. It has Schläfli symbol {5}⊗{5/3}, s{5}s{5/3} or ht0,1,2,3{5,2,5/3}, Coxeter diagram , constructed from 10 pentagonal antiprisms, 10 pentagrammic crossed-antiprisms, and 50 tetrahedra.

Its vertices are a subset of those of the small stellated 120-cell.

Images


stereographic projection, centered on one pentagrammic crossed-antiprism

Orthogonal projection, with vertices colored by overlaps, red, orange, yellow, green have 1, 2, 3,4 multiplicity.

Other names

  • Great duoantiprism (gudap) Jonathan Bowers [1][2]

References

  • Regular Polytopes, H. S. M. Coxeter, Dover Publications, Inc., 1973, New York, p. 124.
  • Norman Johnson Uniform Polytopes, Manuscript (1991)
    • N.W. Johnson: The Theory of Uniform Polytopes and Honeycombs, Ph.D. Dissertation, University of Toronto, 1966
  • Klitzing, Richard. "4D uniform polytopes (polychora) s5/3s2s5s - gudap".