the Coxeter complex, named after H. S. M. Coxeter, is a geometrical structure (a simplicial complex) associated to a Coxeter group. Coxeter complexes are...
7 KB (1,258 words) - 10:30, 27 July 2025
a Coxeter–Dynkin diagram (or Coxeter diagram, Coxeter graph) is a graph with numerically labeled edges (called branches) representing a Coxeter group...
57 KB (3,233 words) - 15:31, 14 May 2025
a building Δ is a Coxeter group W, which determines a highly symmetrical simplicial complex Σ = Σ(W,S), called the Coxeter complex. A building Δ is glued...
26 KB (3,216 words) - 07:56, 13 May 2025
the Coxeter graph, Coxeter groups, Coxeter's loxodromic sequence of tangent circles, Coxeter–Dynkin diagrams, and the Todd–Coxeter algorithm. Coxeter was...
17 KB (1,693 words) - 10:05, 30 June 2025
symbolic notation developed by Coxeter. Some complex polytopes which are not fully regular have also been described. The complex line C 1 {\displaystyle \mathbb...
154 KB (6,983 words) - 12:00, 27 July 2025
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...
35 KB (3,763 words) - 17:39, 13 July 2025
or 5-orthoplex. Coxeter, Regular Polytopes, sec 1.8 Configurations Coxeter, Complex Regular Polytopes, p. 117 H.S.M. Coxeter: Coxeter, Regular Polytopes...
10 KB (825 words) - 02:10, 23 July 2025
Coxeter 1973, § 1.8 Configurations Coxeter, Complex Regular Polytopes, p.117 Conway, Burgiel & Goodman-Strauss 2008, p. 406, Fig 26.2 Coxeter, Star...
27 KB (1,648 words) - 08:01, 15 October 2024
regular complex polygons have been completely characterized, and can be described using a symbolic notation developed by Coxeter. A regular complex polygon...
37 KB (1,846 words) - 08:53, 28 November 2024
number of faces in the Coxeter complex associated with a Coxeter group of type A n − 1 {\displaystyle A_{n-1}} . Here, a Coxeter group can be thought of...
37 KB (5,086 words) - 09:40, 12 July 2025
1016/S0747-7171(88)80010-5. Coxeter, Regular Polytopes, sec 1.8 Configurations Coxeter, Complex Regular Polytopes, p.117 Coxeter, H.S.M. Regular Polytopes...
9 KB (623 words) - 00:54, 17 January 2025
with -1 < xi < 1. Coxeter, Regular Polytopes, sec 1.8 Configurations Coxeter, Complex Regular Polytopes, p.117 H.S.M. Coxeter: Coxeter, Regular Polytopes...
7 KB (596 words) - 00:27, 17 November 2022
real reflection groups (the Coxeter groups or Weyl groups, including the symmetry groups of regular polyhedra). A (complex) reflection r (sometimes also...
28 KB (2,306 words) - 03:19, 12 July 2025
dimensional, locally finite, ranked simplicial complex to capture isomorphisms between finite rank Coxeter systems) and asked more related open questions...
2 KB (217 words) - 17:41, 7 March 2025
Polytopes, sec 1.8 Configurations Coxeter, Complex Regular Polytopes, p.117 H.S.M. Coxeter: H.S.M. Coxeter, Regular Polytopes, 3rd Edition, Dover New...
7 KB (505 words) - 17:44, 1 June 2025
previous property. Every Coxeter complex, and more generally every building (in the sense of Tits), is shellable. The boundary complex of a (convex) polytope...
3 KB (454 words) - 01:43, 13 November 2024
Parabolic subgroup of a reflection group (category Coxeter groups)
complex reflection group, so the complex reflection groups form another generalization of finite real reflection groups. Suppose that W is a Coxeter group...
31 KB (4,299 words) - 00:40, 23 July 2025
8th in an infinite series of hypercube: Coxeter, Regular Polytopes, sec 1.8 Configurations Coxeter, Complex Regular Polytopes, p.117 Klitzing, Richard...
9 KB (640 words) - 20:00, 28 July 2025
Coxeter notation (also Coxeter symbol) is a system of classifying symmetry groups, describing the angles between fundamental reflections of a Coxeter...
175 KB (6,422 words) - 16:00, 13 July 2025
5-demicube). In Coxeter's notation the 5-demicube is given the symbol 121. Coxeter, Regular Polytopes, sec 1.8 Configurations Coxeter, Complex Regular Polytopes...
9 KB (670 words) - 16:53, 9 April 2024
the Coxeter complexes that make them up are colorable. A coloring of a building is associated with a uniform choice of Weyl group for the Coxeter complexes...
6 KB (1,072 words) - 15:19, 21 May 2015
1016/0012-365X(82)90185-6, MR 0676709 Coxeter 1973, p. 12, §1.8 Configurations. Coxeter 1973, p. 293. Coxeter, H. S. M., Regular Complex Polytopes, second edition...
26 KB (2,666 words) - 11:51, 4 June 2025
Witting polytope (category Complex analysis)
In 4-dimensional complex geometry, the Witting polytope is a regular complex polytope, named as: 3{3}3{3}3{3}3, and Coxeter diagram . It has 240 vertices...
9 KB (623 words) - 08:52, 28 November 2024
Polytope (section Complex polytopes)
generalised the idea as complex polytopes in complex space, where each real dimension has an imaginary one associated with it. Coxeter developed the theory...
26 KB (3,125 words) - 20:08, 14 July 2025
Iwahori–Hecke algebra (redirect from Hecke algebra of a Coxeter group)
of the group algebra of a Coxeter group. The Hecke algebra can also be viewed as a q-analog of the group algebra of a Coxeter group. Hecke algebras are...
15 KB (2,097 words) - 12:45, 12 June 2025
meshes:Surface (polygonal) Simplification 1997. (retrieved May 2016) Coxeter, H. S. M., Regular Complex Polytopes, Cambridge University Press, 1974. Introduction...
3 KB (393 words) - 21:13, 12 May 2024
5-cell (section As a Boerdijk–Coxeter helix)
pentachoron, pentatope, pentahedroid, tetrahedral pyramid, or 4-simplex (Coxeter's α 4 {\displaystyle \alpha _{4}} polytope), the simplest possible convex...
37 KB (3,706 words) - 23:27, 16 July 2025
Hessian polyhedron (category Complex analysis)
quasiregular form. Coxeter, Complex Regular polytopes, p.123 Coxeter Regular Convex Polytopes, 12.5 The Witting polytope Coxeter, Complex Regular polytopes...
15 KB (738 words) - 09:03, 28 November 2024
Dynkin diagrams exactly coincide with Coxeter diagrams, as there are no multiple edges. Dynkin diagrams classify complex semisimple Lie algebras. Real semisimple...
78 KB (5,608 words) - 18:31, 28 June 2025
vertices) Coxeter, Regular Polytopes, sec 1.8 Configurations Coxeter, Complex Regular Polytopes, p.117 Klitzing, Richard. "o3x3o3o3o - rix". Coxeter, Regular...
14 KB (978 words) - 16:06, 9 January 2024