On the isotopies of tangles in periodic 3-manifolds using finite covers
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866912987016593408 |
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| author | Kotorii, Yuka Mahmoudi, Sonia Matsumoto, Elisabetta A. Yoshida, Ken'ichi |
| author_facet | Kotorii, Yuka Mahmoudi, Sonia Matsumoto, Elisabetta A. Yoshida, Ken'ichi |
| contents | A periodic tangle is a one-dimensional submanifold in $\mathbb{R}^3$ that has translational symmetry in one, two or three transverse directions. A periodic tangle can be seen as the universal cover of a link in the solid torus, the thickened torus, or the three-torus, respectively. Our goal is to study equivalence relations of such periodic tangles. Since all finite covers of a link lift to the same periodic tangle, it is necessary to prove that isotopies between different finite covers are preserved. In this paper, we show that if two links have isotopic lifts in a common finite cover, then they are isotopic. To do so, we employ techniques from 3-manifold topology to study the complements of such links. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_20940 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | On the isotopies of tangles in periodic 3-manifolds using finite covers Kotorii, Yuka Mahmoudi, Sonia Matsumoto, Elisabetta A. Yoshida, Ken'ichi Geometric Topology 57K10, 57K30, 57K32, 57M10 A periodic tangle is a one-dimensional submanifold in $\mathbb{R}^3$ that has translational symmetry in one, two or three transverse directions. A periodic tangle can be seen as the universal cover of a link in the solid torus, the thickened torus, or the three-torus, respectively. Our goal is to study equivalence relations of such periodic tangles. Since all finite covers of a link lift to the same periodic tangle, it is necessary to prove that isotopies between different finite covers are preserved. In this paper, we show that if two links have isotopic lifts in a common finite cover, then they are isotopic. To do so, we employ techniques from 3-manifold topology to study the complements of such links. |
| title | On the isotopies of tangles in periodic 3-manifolds using finite covers |
| topic | Geometric Topology 57K10, 57K30, 57K32, 57M10 |
| url | https://arxiv.org/abs/2505.20940 |