Immersed flat ribbon knots
Fuente:
arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2020
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| _version_ | 1866918165186871296 |
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| author | Ayala, José Kirszenblat, David Rubinstein, J. Hyam |
| author_facet | Ayala, José Kirszenblat, David Rubinstein, J. Hyam |
| contents | We study the minimum ribbonlength for immersed planar ribbon knots and links. Our approach is to embed the space of such knots and links into a larger more tractable space of disk diagrams. When length minimisers in disk diagram space are ribbon, then these solve the ribbonlength problem. We also provide examples when minimisers in the space of disk diagrams are not ribbon and state some conjectures. We compute the minimal ribbonlength of some small knot and link diagrams and certain infinite families of link diagrams. Finally we present a bound for the number of crossings for a diagram yielding the minimum ribbonlength of a knot or link amongst all diagrams. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2005_13168 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | Immersed flat ribbon knots Ayala, José Kirszenblat, David Rubinstein, J. Hyam Geometric Topology 57M25, 57M27, 49Q10, 53C42 We study the minimum ribbonlength for immersed planar ribbon knots and links. Our approach is to embed the space of such knots and links into a larger more tractable space of disk diagrams. When length minimisers in disk diagram space are ribbon, then these solve the ribbonlength problem. We also provide examples when minimisers in the space of disk diagrams are not ribbon and state some conjectures. We compute the minimal ribbonlength of some small knot and link diagrams and certain infinite families of link diagrams. Finally we present a bound for the number of crossings for a diagram yielding the minimum ribbonlength of a knot or link amongst all diagrams. |
| title | Immersed flat ribbon knots |
| topic | Geometric Topology 57M25, 57M27, 49Q10, 53C42 |
| url | https://arxiv.org/abs/2005.13168 |