Delta-unknotting number for knots

被引：10
|
作者：
Nakamura, K [1 ]
Nakanishi, Y
Uchida, Y
机构：
[1] Osaka Univ, Dept Math, Toyonaka, Osaka 560, Japan
[2] Kobe Univ, Dept Math, Nada Ku, Kobe, Hyogo 657, Japan
[3] Yamagata Univ, Dept Math Sci, Yamagata 990, Japan
来源：
JOURNAL OF KNOT THEORY AND ITS RAMIFICATIONS | 1998年 / 7卷 / 05期
关键词：
Delta-unknotting number; Delta-Gordian distance; Conway polynomial; linking number; torus knot; pretzel knot;
D O I：
10.1142/S0218216598000334
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
The Delta-unknotting number for a knot is defined to be the minimum number of Delta-unknotting operations which deform the knot into the trivial knot. We determine the Delta-unknotting numbers for torus knots, positive pretzel knots, and positive closed 3-braids.
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页码：639 / 650
页数：12
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