Acronym | ... |
Name | 6tet (?) |
Circumradius | sqrt(3/8) = 0.612372 |
Vertex figure |
6[(6/2)3] (type A) 3[(3,6/2,6/2)2]/2 (type B) 3[36]/2 (type C) 3[33,6/2,3,6/2]/2 (type D) |
General of army | tet |
Colonel of regiment | tet |
Confer |
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Looks like a compound of 6 tetrahedra (tet), and indeed in type A vertices and edges both coincide by six, {6/2} coincide by three. In type B edges coincide by 6, vertices by 3, and pairs of {3} coincide with pairs of {6/2} each. In type C edges and {3} coincide by 6, vertices by 3. In type D vertices coincide by 3, edges by 6, and 4 triangles each coincide with one {6/2}.
Incidence matrix according to Dynkin symbol
x3/2x3/2x3/2*a (type A) . . . | 24 | 1 1 1 | 1 1 1 ---------------+----+----------+------ x . . | 2 | 12 * * | 1 1 0 . x . | 2 | * 12 * | 1 0 1 . . x | 2 | * * 12 | 0 1 1 ---------------+----+----------+------ x3/2x . | 6 | 3 3 0 | 4 * * x . x3/2*a | 6 | 3 0 3 | * 4 * . x3/2x | 6 | 0 3 3 | * * 4
x3/2o3β3*a (type B) both( . . . ) | 12 | 2 2 2 | 1 2 1 2 -------------------+----+----------+-------- both( x . . ) | 2 | 12 * * | 1 1 0 0 sefa( x . β3*a ) | 2 | * 12 * | 0 1 0 1 sefa( . o3β ) | 2 | * * 12 | 0 0 1 1 -------------------+----+----------+-------- both( x3/2o . ) | 3 | 3 0 0 | 4 * * * x . β3*a ♦ 6 | 3 3 0 | * 4 * * . o3β ♦ 3 | 0 0 3 | * * 4 * sefa( x3/2o3β3*a ) | 6 | 0 3 3 | * * * 4 starting figure: x3/2o3x3*a
β3/2β3o (type C) both( . . . ) | 12 | 4 2 | 2 1 3 ----------------+----+-------+------- sefa( s3/2s . ) | 2 | 24 * | 1 0 1 sefa( . β3o ) | 2 | * 12 | 0 1 1 ----------------+----+-------+------- both( s3/2s . ) ♦ 3 | 3 0 | 8 * * . β3o ♦ 3 | 0 3 | * 4 * sefa( β3/2β3o ) | 3 | 2 1 | * * 12 starting figure: x3/2x3o
x3/2x3β (type A) both( . . . ) | 24 | 1 1 1 | 1 1 1 ----------------+----+----------+------ both( x . . ) | 2 | 12 * * | 1 0 1 both( . x . ) | 2 | * 12 * | 1 1 0 sefa( . x3β ) | 2 | * * 12 | 0 1 1 ----------------+----+----------+------ both( x3/2x . ) | 6 | 3 3 0 | 4 * * . x3β ♦ 6 | 0 3 3 | * 4 * sefa( x3/2x3β ) | 6 | 3 0 3 | * * 4 starting figure: x3/2x3x
β3/2x3β (type D) demi( . . . ) | 12 | 2 2 2 | 1 2 3 ----------------+----+----------+------- both( . x . ) | 2 | 12 * * | 1 1 0 both( s 2 s ) | 2 | * 12 * | 0 0 2 sefa( . x3β ) | 2 | * * 12 | 0 1 1 ----------------+----+----------+------- β3/2x . ♦ 3 | 3 0 0 | 4 * * . x3β ♦ 6 | 3 0 3 | * 4 * sefa( β3/2x3β ) | 3 | 0 2 1 | * * 12 starting figure: x3/2x3x
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