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2 31 polytope — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/2_31_polytope
License (as archived): CC-BY-SA-4.0
Archived: 2026-11-06T12:17:07.349Z
SHA-256 of the archived text: a5ceae5dea82094e23c272a4bb7ab8a1b16d37c21247c72e3e29451c6fcdce0c
Stable URL of this page: https://metraipolis.com/documento/dc_04cbbb0787ff

How to cite

2 31 polytope — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/2_31_polytope (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_04cbbb0787ff (Metraipolis archive dc_04cbbb0787ff, sha256 a5ceae5dea82094e23c272a4bb7ab8a1b16d37c21247c72e3e29451c6fcdce0c)

BibTeX

@misc{dc04cbbb0787ff,
  title = {2 31 polytope — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/2_31_polytope},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_04cbbb0787ff; sha256 a5ceae5dea82094e23c272a4bb7ab8a1b16d37c21247c72e3e29451c6fcdce0c},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/2_31_polytope. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

In 7-dimensional geometry, 231 is a uniform polytope, constructed from the E7 group. Its Coxeter symbol is 231, describing its bifurcating Coxeter-Dynkin diagram, with a single ring on the end of the 2-node branch. The rectified 231 is constructed by points at the mid-edges of the 231. These polytopes are part of a family of 127 (or 27−1) convex uniform polytopes in seven dimensions, made of uniform polytope facets and vertex figures, defined by all combinations of rings in this Coxeter-Dynkin diagram: .

Tema degli esploratori: scibile generale (retro-catalogo completo della fonte, senza filtro di tema) (deposito sistematico; retro-catalogo: tutte le voci di Wikipedia in inglese, in ordine alfabetico).
Fonte: Wikipedia in inglese, voce «2 31 polytope» — https://en.wikipedia.org/wiki/2_31_polytope
Wikidata Q4633287: «uniform 7-polytope» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q4633287
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/2_31_polytope?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1349745751, consultata il 2026-11-06T12:14:36.197Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: fedfae7442f99f554458515f8b5590e35bf1f7ca0b84ffe4dece6eae4a24f80b