Acronym | ... |
Name |
Shephard's p-generalised cube, complex polyhedron xp-4-o2-3-o2, γp3 |
© p=3 p=4 p=5 | |
Circumradius | sqrt(3)/(2 sin(π/p)) |
Vertex figure | trig |
Coordinates | (εpn, εpm, εpk)/(2 sin(π/p)) for any 1≤n,m,k≤p, where εp=exp(2πi/p) |
Dual | x2-3-o2-4-op |
Face vector | p3, 3p2, 3p |
Especially | x3-4-o2-3-o2 (p=3) x4-4-o2-3-o2 (p=4) x5-4-o2-3-o2 (p=5) |
Confer |
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External links |
The (complex) edges then are xp-4-o2, which were nothing but the set of p-gons of the respective (p,p)-duoprism each. The vertex figure here throughout is just x2-3-o2, i.e. nothing but the real space triangle.
Those polytopes happen to be the (complex) 3-dimensional versions of Shephard's generalised hypercubes. In fact, p=2 not only returns into the real subspace only, but moreover becomes (here) nothing but the well-known cube.
The below various incidence representations are direct, next dimensional consequences from what was explained already at xp-4-o2 = xp xp. I.e. the according cartesian or prism product applies for complex polytopes alike.
Incidence matrix according to Dynkin symbol
xp-4-o2-3-o2 . . . | p3 | 3 | 3 ------------+----+-----+--- xp . . | p | 3p2 | 2 ------------+----+-----+--- xp-4-o2 . ♦ p2 | 2p | 3p snubbed forms: sp-4-o2-3-o2
xp xp-4-o2 . . . | p3 | 1 2 | 2 1 ------------+----+--------+----- xp . . | p | p2 * | 2 0 . xp . | p | * 2p2 | 1 1 ------------+----+--------+----- xp xp . ♦ p2 | p p | 2p * . xp-4-o2 ♦ p2 | 0 2p | * p
xp xp xp . . . | p3 | 1 1 1 | 1 1 1 ------------+----+----------+------ xp . . | p | p2 * * | 1 1 0 . xp . | p | * p2 * | 1 0 1 . . xp | p | * * p2 | 0 1 1 ------------+----+----------+------ xp xp . ♦ p2 | p p 0 | p * * xp . xp ♦ p2 | p 0 p | * p * . xp xp ♦ p2 | 0 p p | * * p
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