翻訳と辞書 |
Stick number : ウィキペディア英語版 | Stick number
In the mathematical theory of knots, the stick number is a knot invariant that intuitively gives the smallest number of straight "sticks" stuck end to end needed to form a knot. Specifically, given any knot ''K'', the stick number of ''K'', denoted by stick(''K''), is the smallest number of edges of a polygonal path equivalent to ''K''. ==Known values== Six is the lowest stick number for any nontrivial knot. There are few knots whose stick number can be determined exactly. Gyo Taek Jin determined the stick number of a (''p'', ''q'')-torus knot ''T''(''p'', ''q'') in case the parameters ''p'' and ''q'' are not too far from each other : : The same result was found independently around the same time by a research group around Colin Adams, but for a smaller range of parameters .
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「Stick number」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.
|
|