Milnor's invariants for knots and links in closed orientable 3-manifolds
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arXiv
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| Format: | Preprint |
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2023
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| _version_ | 1866909013715714048 |
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| author | Stees, Ryan |
| author_facet | Stees, Ryan |
| contents | In his 1957 paper, John Milnor introduced a collection of invariants for links in $S^3$ detecting higher-order linking phenomena by studying lower central quotients of link groups and comparing them to those of the unlink. These invariants, now known as Milnor's $\overlineμ$-invariants, were later shown to be topological link concordance invariants and have since inspired decades of consequential research. Milnor's invariants have many interpretations, and there have been numerous attempts to extend them to other settings. In this paper, we extend Milnor's invariants to topological concordance invariants of knots and links in general closed orientable 3-manifolds. These invariants unify and generalize all previous versions of Milnor's invariants in dimension 3, including Milnor's original invariants for links in $S^3$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_10918 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Milnor's invariants for knots and links in closed orientable 3-manifolds Stees, Ryan Geometric Topology 57K10, 57K31, 57K40 In his 1957 paper, John Milnor introduced a collection of invariants for links in $S^3$ detecting higher-order linking phenomena by studying lower central quotients of link groups and comparing them to those of the unlink. These invariants, now known as Milnor's $\overlineμ$-invariants, were later shown to be topological link concordance invariants and have since inspired decades of consequential research. Milnor's invariants have many interpretations, and there have been numerous attempts to extend them to other settings. In this paper, we extend Milnor's invariants to topological concordance invariants of knots and links in general closed orientable 3-manifolds. These invariants unify and generalize all previous versions of Milnor's invariants in dimension 3, including Milnor's original invariants for links in $S^3$. |
| title | Milnor's invariants for knots and links in closed orientable 3-manifolds |
| topic | Geometric Topology 57K10, 57K31, 57K40 |
| url | https://arxiv.org/abs/2310.10918 |