Seifert circles, crossing number and the braid index of generalized knots and links
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2022
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| _version_ | 1866908627006128128 |
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| author | Cardoso, Gustavo Ocampo, Oscar |
| author_facet | Cardoso, Gustavo Ocampo, Oscar |
| contents | For classical links Ohyama proved an inequality involving the minimal crossing number and the braid index, then motivated from this Takeda showed an analogous inequality for virtual links. In this paper, we are interested in studying properties of links independent of the type of crossings, and for this reason, we introduce generalized crossings for diagrams and generalized Reidemeister-type moves. The aim of this work is to prove the same type of inequality mentioned above but now involving the total crossing number and the braid index of generalized knots and links. In particular, we show that the result holds for virtual singular links. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2212_14737 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Seifert circles, crossing number and the braid index of generalized knots and links Cardoso, Gustavo Ocampo, Oscar Geometric Topology 57K12, 57K10, 57M15, 20F36 For classical links Ohyama proved an inequality involving the minimal crossing number and the braid index, then motivated from this Takeda showed an analogous inequality for virtual links. In this paper, we are interested in studying properties of links independent of the type of crossings, and for this reason, we introduce generalized crossings for diagrams and generalized Reidemeister-type moves. The aim of this work is to prove the same type of inequality mentioned above but now involving the total crossing number and the braid index of generalized knots and links. In particular, we show that the result holds for virtual singular links. |
| title | Seifert circles, crossing number and the braid index of generalized knots and links |
| topic | Geometric Topology 57K12, 57K10, 57M15, 20F36 |
| url | https://arxiv.org/abs/2212.14737 |