Journals / Anadolu Üniversitesi Bilim ve Teknoloji Dergisi :A-Uygulamalı Bilimler ve Mühendislik / 2002 / Cilt: 3 - Sayı: 3

On the volumes of some regular polytopes in hyperbolic space

Hiperbolik uzayda bazı ideal çokyüzlülerin hacimleri üzerine

Pages
369–376
Publication Date
2022-10-11
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In this work, we have shown that some polytopes (hexahedron, octahedron, icosahedron) must be regular and ideal for maximality of their volumes.

📌 3 Key Takeaways

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Objective & Hypothesis:The Lobachevsky function, frequently used in calculation of volume in 3-dimensional hyperbolic space, is denned by JI :Bbb{R}rightarrowBbb{R} $JI(theta)=-int_0^theta log|2 sin x|dx$ It is known since Lobachevsky that the tetrahedron which has maximal volume among all tetrahedra is regular and ideal tetrahedron and its volume is $3JI (frac{pi}{3})$. (Milnor, 1982; Ratcliffe, 1994).
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Key Findings & Data:The volumes of regular, ideal hexahedron, octahedron; dodecahedron and icosahedron are calculated in (Deniz, 2001).
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Conclusion & Impact:In this work, we have shown that some polytopes (hexahedron, octahedron, icosahedron) must be regular and ideal for maximality of their volumes.
🔬Design:Research Article
📍Scope:2001 Verileri
⚙️Variables:Domain Parameters

Abstract

The Lobachevsky function, frequently used in calculation of volume in 3-dimensional hyperbolic space, is denned by JI :Bbb{R}rightarrowBbb{R} $JI(theta)=-int_0^theta log|2 sin x|dx$ It is known since Lobachevsky that the tetrahedron which has maximal volume among all tetrahedra is regular and ideal tetrahedron and its volume is $3JI (frac{pi}{3})$. (Milnor, 1982; Ratcliffe, 1994). The volumes of regular, ideal hexahedron, octahedron; dodecahedron and icosahedron are calculated in (Deniz, 2001). In this work, we have shown that some polytopes (hexahedron, octahedron, icosahedron) must be regular and ideal for maximality of their volumes.

Özet

3-boyutlu hiperbolik uzayda, hacim hesabında sıkça kullanılan Lobachevsky fonksiyonu $JI :Bbb {R} rightarrow Bbb {R}}$ $JI(theta)=-int_0^theta log|2 sin x|dx$ şeklinde tanımlanır. Hiperbolik uzayda düzgün, ideal dörtyüzlünün hacminin $3JI (frac{pi}{3})$ olduğu ve tüm hiperbolik dörtyüzlüler arasında maksimum hacimli dörtyüzlünün düzgün, ideal dörtyüzlü olduğu Lobachevsky'den beri bilinmektedir. (Milnor, 1982; Ratcliffe, 1994). İdeal düzgün altıyüzlü, sekizyüzlü ve yirmiyüzlünün hacimleri (Deniz, 2001)'de hesaplanmıştır. Bu çalışmada bazı hiperbolik çokyüzlülerin (altıyüzlü, sekizyüzlü, yirmiyüzlü) hacimlerinin maksimum olabilmesi için düzgün ve ideal olmaları gerektiği gösterilmiştir.

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Cite This Article

DENİZ, A., RATIU, A. V. (2022). On the volumes of some regular polytopes in hyperbolic space. Anadolu Üniversitesi Bilim ve Teknoloji Dergisi :A-Uygulamalı Bilimler ve Mühendislik, Cilt: 3 - Sayı: 3, 369–376. https://ajindex.com/articles/438494

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References (3)

  1. Deniz, A. (2001). Hiperbolik Uzayda Maksimum Hacimli Simpleksler ve Düzgünlük. Yüksek Lisans Tezi, Anadolu Üniversitesi,
  2. Eskişehir. Milnor, J. (1982). Hyperbolic Geometry: The First 150 Years. Bull. Amer. Math. Soc. 6, 9-24.
  3. Ratcliffe, J. G. (1994). Foundations of Hyperbolic Manifolds. Graduate Texts in Math, Springer, New York.