26 relations: Coxeter group, Coxeter–Dynkin diagram, Facet (geometry), Geometry, Gosset–Elte figures, Harold Scott MacDonald Coxeter, Hyperplane, Rectified 6-simplexes, Rectified 7-simplexes, Schläfli symbol, Tetrahedron, Triangle, Uniform 2 k1 polytope, Uniform honeycomb, Vertex figure, Wythoff construction, 2 21 polytope, 2 31 polytope, 2 41 polytope, 5-cell, 5-orthoplex, 5-simplex, 6-simplex, 7-simplex, 8-demicube, 8-simplex.

## 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).

New!!: 2 51 honeycomb 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 the spatial relations between a collection of mirrors (or reflecting hyperplanes).

New!!: 2 51 honeycomb 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.

New!!: 2 51 honeycomb and Facet (geometry) ·

## Geometry

Geometry (from the γεωμετρία; geo- "earth", -metron "measurement") is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space.

New!!: 2 51 honeycomb and Geometry ·

## Gosset–Elte figures

In geometry, the Gosset–Elte figures, named by Coxeter after Thorold Gosset and E. L. Elte, are a group of uniform polytopes which are not regular, generated by a Wythoff construction with mirrors all related by order-2 and order-3 dihedral angles.

New!!: 2 51 honeycomb and Gosset–Elte figures ·

## Harold Scott MacDonald Coxeter

Harold Scott MacDonald "Donald" Coxeter, FRS, FRSC, (February 9, 1907 – March 31, 2003) was a British-born Canadian geometer.

New!!: 2 51 honeycomb and Harold Scott MacDonald Coxeter ·

## Hyperplane

In geometry a hyperplane is a subspace of one dimension less than its ambient space.

New!!: 2 51 honeycomb and Hyperplane ·

## Rectified 6-simplexes

In six-dimensional geometry, a rectified 6-simplex is a convex uniform 6-polytope, being a rectification of the regular 6-simplex.

New!!: 2 51 honeycomb and Rectified 6-simplexes ·

## Rectified 7-simplexes

In seven-dimensional geometry, a rectified 7-simplex is a convex uniform 7-polytope, being a rectification of the regular 7-simplex.

New!!: 2 51 honeycomb and Rectified 7-simplexes ·

## Schläfli symbol

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

New!!: 2 51 honeycomb and Schläfli symbol ·

## Tetrahedron

In geometry, a tetrahedron (plural: tetrahedra or tetrahedrons) is a polyhedron composed of four triangular faces, three of which meet at each corner or vertex.

New!!: 2 51 honeycomb and Tetrahedron ·

## Triangle

A triangle is a polygon with three edges and three vertices.

New!!: 2 51 honeycomb and Triangle ·

## Uniform 2 k1 polytope

In geometry, 2k1 polytope is a uniform polytope in n dimensions (n.

New!!: 2 51 honeycomb and Uniform 2 k1 polytope ·

## Uniform honeycomb

In geometry, a uniform honeycomb or uniform tessellation or infinite uniform polytope, is a vertex-transitive honeycomb made from uniform polytope facets.

New!!: 2 51 honeycomb and Uniform honeycomb ·

## Vertex figure

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

New!!: 2 51 honeycomb and Vertex figure ·

## Wythoff construction

In geometry, a Wythoff construction, named after mathematician Willem Abraham Wythoff, is a method for constructing a uniform polyhedron or plane tiling.

New!!: 2 51 honeycomb and Wythoff construction ·

## 2 21 polytope

In 6-dimensional geometry, the 221 polytope is a uniform 6-polytope, constructed within the symmetry of the E6 group.

New!!: 2 51 honeycomb and 2 21 polytope ·

## 2 31 polytope

In 7-dimensional geometry, 231 is a uniform polytope, constructed from the E7 group.

New!!: 2 51 honeycomb and 2 31 polytope ·

## 2 41 polytope

In 8-dimensional geometry, the 241 is a uniform 8-polytope, constructed within the symmetry of the E8 group.

New!!: 2 51 honeycomb and 2 41 polytope ·

## 5-cell

In geometry, the 5-cell is a four-dimensional object bounded by 5 tetrahedral cells.

New!!: 2 51 honeycomb and 5-cell ·

## 5-orthoplex

In five-dimensional geometry, a 5-orthoplex, or 5-cross polytope, is a five-dimensional polytope with 10 vertices, 40 edges, 80 triangle faces, 80 tetrahedron cells, 32 5-cell 4-faces.

New!!: 2 51 honeycomb and 5-orthoplex ·

## 5-simplex

In five-dimensional geometry, a 5-simplex is a self-dual regular 5-polytope.

New!!: 2 51 honeycomb and 5-simplex ·

## 6-simplex

In geometry, a 6-simplex is a self-dual regular 6-polytope.

New!!: 2 51 honeycomb and 6-simplex ·

## 7-simplex

In 7-dimensional geometry, a 7-simplex is a self-dual regular 7-polytope.

New!!: 2 51 honeycomb and 7-simplex ·

## 8-demicube

In geometry, a demiocteract or 8-demicube is a uniform 8-polytope, constructed from the 8-hypercube, octeract, with alternated vertices truncated.

New!!: 2 51 honeycomb and 8-demicube ·

## 8-simplex

In geometry, an 8-simplex is a self-dual regular 8-polytope.

New!!: 2 51 honeycomb and 8-simplex ·

## Redirects here:

Gosset 2 51 honeycomb, Gosset 2 51 lattice.