Involutions of knots that fix unknotting tunnels

被引:5
|
作者
Futer, David [1 ]
机构
[1] Michigan State Univ, Dept Math, E Lansing, MI 48824 USA
关键词
unknotting tunnel; two-bridge knot involution; handlebody;
D O I
10.1142/S0218216507005506
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let K be a knot that has an unknotting tunnel tau. We prove that K admits a strong involution that fixes tau pointwise if and only if K is a two-bridge knot and tau its upper or lower tunnel.
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页码:741 / 748
页数:8
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