surface-knot;
triple point number;
quandle cocycle invariant;
D O I:
10.1016/j.topol.2003.09.006
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
The triple point number of a surface-knot is defined to be the minimal number of triple points among all diagrams of the surface-knot. We give a lower bound of the triple point number using quandle cocycle invariants. (C) 2003 Published by Elsevier B.V.
机构:
Beijing Normal Univ, Sch Math Sci, Lab Math & Complex Syst, Minist Educ, Beijing 100875, Peoples R ChinaBeijing Normal Univ, Sch Math Sci, Lab Math & Complex Syst, Minist Educ, Beijing 100875, Peoples R China
Cheng, Zhiyun
Gao, Hongzhu
论文数: 0引用数: 0
h-index: 0
机构:
Beijing Normal Univ, Sch Math Sci, Lab Math & Complex Syst, Minist Educ, Beijing 100875, Peoples R ChinaBeijing Normal Univ, Sch Math Sci, Lab Math & Complex Syst, Minist Educ, Beijing 100875, Peoples R China