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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Platonic graph ： ウィキペディア英語版 Platonic graph In the mathematical field of graph theory, a Platonic graph is a graph that has one of the Platonic solids as its skeleton. There are 5 Platonic graphs, and all of them are regular, polyhedral (and therefore by necessity also 3-vertex-connected, vertex-transitive, edge-transitive and planar graphs), and also Hamiltonian graphs.〔Read, R. C. and Wilson, R. J. ''An Atlas of Graphs'', Oxford, England: Oxford University Press, 2004 reprint, Chapter 6 ''special graphs'' pp. 261, 266.〕 * Tetrahedral graph – 4 vertices, 6 edges * Octahedral graph – 6 vertices, 12 edges * Cubical graph – 8 vertices, 12 edges * Icosahedral graph – 12 vertices, 30 edges * Dodecahedral graph – 20 vertices, 30 edges == See also== *Regular map (graph theory) *Archimedean graph *Wheel graph 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Platonic graph」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.