Magical Property of Fullerenes

Fuente: arXiv
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Hauptverfasser: Baralic, Djordje, Farhat, Adam
Format: Preprint
Veröffentlicht: 2025
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author Baralic, Djordje
Farhat, Adam
author_facet Baralic, Djordje
Farhat, Adam
contents Fullerenes are an allotrope of carbon having hollow, cage-like structure. Atoms in the molecule are arranged in pentagonal and hexagonal rings, such that each atom is connected to three other atoms. Simple polyhedra having only pentagonal and hexagonal faces are a mathematical model for fullerenes. We say that a fullerene with $n$ vertices has magical property if the numbers $1, 2, \dots, n$ may be assigned to its vertices so that the sums of the numbers in each pentagonal faces are equal and the sums of the numbers in each hexagonal faces are equal. We show that $C_{8n+4}$ does not admit such an arrangement for all $n$, while there are fullerenes, like $C_{24}$ and $C_{26}$ that have many nonisomorphic such arrangements.
format Preprint
id arxiv_https___arxiv_org_abs_2508_07365
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Magical Property of Fullerenes
Baralic, Djordje
Farhat, Adam
Combinatorics
00A08
Fullerenes are an allotrope of carbon having hollow, cage-like structure. Atoms in the molecule are arranged in pentagonal and hexagonal rings, such that each atom is connected to three other atoms. Simple polyhedra having only pentagonal and hexagonal faces are a mathematical model for fullerenes. We say that a fullerene with $n$ vertices has magical property if the numbers $1, 2, \dots, n$ may be assigned to its vertices so that the sums of the numbers in each pentagonal faces are equal and the sums of the numbers in each hexagonal faces are equal. We show that $C_{8n+4}$ does not admit such an arrangement for all $n$, while there are fullerenes, like $C_{24}$ and $C_{26}$ that have many nonisomorphic such arrangements.
title Magical Property of Fullerenes
topic Combinatorics
00A08
url https://arxiv.org/abs/2508.07365