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When can a link be obtained from another using crossing exchanges and smoothings Medina Graciano, Carolina
Description
Let $L$ be a fixed link. Given a link diagram $D$, is there a sequence of crossing exchanges and smoothings on $D$ that yields a diagram of $L$ We approach this problem from the computational complexity point of view. It follows from work by Endo, Itoh, and Taniyama that if $L$ is a prime link with crossing number at most five, then there is an algorithm that answers this question in polynomial time. We show that the same holds for all torus $T_{2,m}$ and all twist knots.
Item Metadata
Title |
When can a link be obtained from another using crossing exchanges and smoothings
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Creator | |
Publisher |
Banff International Research Station for Mathematical Innovation and Discovery
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Date Issued |
2019-03-27T11:08
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Description |
Let $L$ be a fixed link. Given a link diagram $D$, is there a sequence of crossing exchanges and smoothings on $D$ that yields a diagram of $L$ We approach this problem from the computational complexity point of view. It follows from work by Endo, Itoh, and Taniyama that if $L$ is a prime link with crossing number at most five, then there is an algorithm that answers this question in polynomial time. We show that the same holds for all torus $T_{2,m}$ and all twist knots.
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Extent |
18.0 minutes
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Type | |
File Format |
video/mp4
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Language |
eng
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Notes |
Author affiliation: Universidad Autónoma de San Luis Potosí Inicio
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Series | |
Date Available |
2019-09-24
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Provider |
Vancouver : University of British Columbia Library
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Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI |
10.14288/1.0380970
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URI | |
Affiliation | |
Peer Review Status |
Unreviewed
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Scholarly Level |
Other
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Rights URI | |
Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International