Heptagonal knots and Radon partitions
Heptagonal knots and Radon partitions
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七角结和氡分区
DOI:
10.4134/jkms.2011.48.2.367
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发表时间:
2010
期刊:
影响因子:
--
通讯作者:
Youngsik Huh
中科院分区:
文献类型:
--
作者:
Youngsik Huh
We establish a necessary and sufficient condition for a heptagonal knot to be figure-8 knot. The condition is described by a set of Radon partitions formed by vertices of the heptagon. In addition we relate this result to the number of nontrivial heptagonal knots in linear embeddings of the complete graph $K_7$ into $\mathbb{R}^3$.