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A Lower Bound on Unknotting Number
Citation:
Jiming MA,Ruifeng QIU.A Lower Bound on Unknotting Number[J].Chinese Annals of Mathematics B,2006,27(4):437~440
Page view:
1101
Net amount:
923
Authors:
Jiming MA; Ruifeng QIU
Foundation:
Project supported by the National Natural Science Foundation of China (No.10171038).
Abstract:
In this paper the authors use a modified Wirtinger presentation to give a lower bound on the unknotting number of a knot in $S^3$.
Keywords:
Unknotting number, Knot, Commutator subgroup
Classification:
57M05, 57M25
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