dorsal/arxiv
View SchemaInvariants of fibred knots from moduli
| Authors | H. U. Boden |
|---|---|
| Categories | |
| ArXiv ID | q-alg/9610028 |
| URL | https://arxiv.org/abs/q-alg/9610028 |
| Journal | p.259-267 in Geometric Topology, Edited by W. Kazez, AMS/IP Studies in Adv. Math. (1997) |
Abstract
An invariant $\mu_{\alpha}(K)$ of fibred knots $K$ in a homology sphere is defined for each $\alpha \in {\bold S}{\bold U}_n$ as follows. Since the knot is fibred, the knot complement is described by an element of the mapping class group, which induces an action on the variety of ${\bold S}{\bold U}_n$ representations of the surface group. Restricting attention to those representations with holonomy along the longitude conjugate to $a \in {\bold S}{\bold U}_n,$ one can define $\mu_{\alpha}(K)$ to be the Lefschetz number of this action. The dependence of $\mu_\alpha(K)$ on $\alpha$ is studied and formulas relating $\mu_{\alpha}(K)$ to $\mu_{\beta}(K)$ are derived for $\alpha,\beta \in ${\bold S}{\bold U}_n$.$
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"abstract": "An invariant $\\mu_{\\alpha}(K)$ of fibred knots $K$ in a homology sphere is\ndefined for each $\\alpha \\in {\\bold S}{\\bold U}_n$ as follows. Since the knot\nis fibred, the knot complement is described by an element of the mapping class\ngroup, which induces an action on the variety of ${\\bold S}{\\bold U}_n$\nrepresentations of the surface group. Restricting attention to those\nrepresentations with holonomy along the longitude conjugate to $a \\in {\\bold\nS}{\\bold U}_n,$ one can define $\\mu_{\\alpha}(K)$ to be the Lefschetz number of\nthis action. The dependence of $\\mu_\\alpha(K)$ on $\\alpha$ is studied and\nformulas relating $\\mu_{\\alpha}(K)$ to $\\mu_{\\beta}(K)$ are derived for\n$\\alpha,\\beta \\in\n ${\\bold S}{\\bold U}_n$.$",
"arxiv_id": "q-alg/9610028",
"authors": [
"H. U. Boden"
],
"categories": [
"q-alg",
"math.QA"
],
"journal_ref": "p.259-267 in Geometric Topology, Edited by W. Kazez, AMS/IP\n Studies in Adv. Math. (1997)",
"title": "Invariants of fibred knots from moduli",
"url": "https://arxiv.org/abs/q-alg/9610028"
},
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