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摘 要: In this paper, a certain class of welded knots K2n is considered. Bycalculating the commutators subgroup of fundamental group Gn of welded knot K2n,n 2 Z+, we show that these welded knots are not equivalent to each other and theyare all not classical knots. Secondly, we study some properties of Gn and obtain thatGn is linear, residually finite and Hopfian.
关键词:    welded  knot,  fundamental  group,  Dihedral  group,  linear  group
作 者 : Li Zhi-guo
英文名 :
刊 名: 《数学研究通讯》
年,卷(期) : 2017 年 , 第 2 期
在线出版日期 :
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