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Pentellated 7-simplexes

Index Pentellated 7-simplexes

In seven-dimensional geometry, a pentellated 7-simplex is a convex uniform 7-polytope with 5th order truncations (pentellation) of the regular 7-simplex. [1]

Table of Contents

  1. 13 relations: Convex polytope, Coxeter group, Coxeter–Dynkin diagram, Facet (geometry), Geometry, Harold Scott MacDonald Coxeter, Norman Johnson (mathematician), Schläfli symbol, Truncation (geometry), Uniform 6-polytope, Uniform 7-polytope, Vertex figure, 7-simplex.

  2. 7-polytopes

Convex polytope

A convex polytope is a special case of a polytope, having the additional property that it is also a convex set contained in the n-dimensional Euclidean space \mathbb^n.

See Pentellated 7-simplexes and Convex polytope

Coxeter group

In mathematics, a Coxeter group, named after H. S. M. Coxeter, is an abstract group that admits a formal description in terms of reflections (or kaleidoscopic mirrors).

See Pentellated 7-simplexes and Coxeter group

Coxeter–Dynkin diagram

In geometry, a Coxeter–Dynkin diagram (or Coxeter diagram, Coxeter graph) is a graph with numerically labeled edges (called branches) representing a Coxeter group or sometimes a uniform polytope or uniform tiling constructed from the group.

See Pentellated 7-simplexes and Coxeter–Dynkin diagram

Facet (geometry)

In geometry, a facet is a feature of a polyhedron, polytope, or related geometric structure, generally of dimension one less than the structure itself.

See Pentellated 7-simplexes and Facet (geometry)

Geometry

Geometry is a branch of mathematics concerned with properties of space such as the distance, shape, size, and relative position of figures.

See Pentellated 7-simplexes and Geometry

Harold Scott MacDonald Coxeter

Harold Scott MacDonald "Donald" Coxeter (9 February 1907 – 31 March 2003) was a British-Canadian geometer and mathematician.

See Pentellated 7-simplexes and Harold Scott MacDonald Coxeter

Norman Johnson (mathematician)

Norman Woodason Johnson was a mathematician at Wheaton College, Norton, Massachusetts.

See Pentellated 7-simplexes and Norman Johnson (mathematician)

Schläfli symbol

In geometry, the Schläfli symbol is a notation of the form \ that defines regular polytopes and tessellations.

See Pentellated 7-simplexes and Schläfli symbol

Truncation (geometry)

In geometry, a truncation is an operation in any dimension that cuts polytope vertices, creating a new facet in place of each vertex.

See Pentellated 7-simplexes and Truncation (geometry)

Uniform 6-polytope

In six-dimensional geometry, a uniform 6-polytope is a six-dimensional uniform polytope.

See Pentellated 7-simplexes and Uniform 6-polytope

Uniform 7-polytope

In seven-dimensional geometry, a 7-polytope is a polytope contained by 6-polytope facets. Pentellated 7-simplexes and Uniform 7-polytope are 7-polytopes.

See Pentellated 7-simplexes and Uniform 7-polytope

Vertex figure

In geometry, a vertex figure, broadly speaking, is the figure exposed when a corner of a polyhedron or polytope is sliced off.

See Pentellated 7-simplexes and Vertex figure

7-simplex

In 7-dimensional geometry, a 7-simplex is a self-dual regular 7-polytope. Pentellated 7-simplexes and 7-simplex are 7-polytopes.

See Pentellated 7-simplexes and 7-simplex

See also

7-polytopes

References

[1] https://en.wikipedia.org/wiki/Pentellated_7-simplexes

Also known as Pentellated 7-simplex, Penticantellated 7-simplex, Penticantitruncated 7-simplex, Pentiruncicantellated 7-simplex, Pentiruncicantitruncated 7-simplex, Pentiruncinated 7-simplex, Pentiruncitruncated 7-simplex, Pentistericantellated 7-simplex, Pentistericantitruncated 7-simplex, Pentistericated 7-simplex, Pentisteriruncicantellated 7-simplex, Pentisteriruncicantitruncated 7-simplex, Pentisteriruncinated 7-simplex, Pentisteriruncitruncated 7-simplex, Pentisteritruncated 7-simplex, Pentitruncated 7-simplex, Small terated octaexon.