dorsal/arxiv
View SchemaBrunnian links and Kontsevich graph complex I
| Authors | Boris Botvinnik, Tadayuki Watanabe |
|---|---|
| Categories | |
| ArXiv ID | 2601.08200vv1 |
| URL | https://arxiv.org/abs/2601.08200 |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
We construct a natural chain map from the Kontsevich graph complex to the rational singular chain complex of $B\mathrm{Diff}_\partial(D^{2k})$ when the dimension $2k$ is sufficiently large, generalizing Goussarov and Habiro's theories of surgery on 3-valent graphs in 3-manifolds. Our construction can be considered as a topological realization of the Kontsevich graph complex. We also give new constructions of elements in the rational homotopy groups of $B\mathrm{Diff}_\partial(D^{2k})$ which are determined by well-known cycles in the graph complex.
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"abstract": "We construct a natural chain map from the Kontsevich graph complex to the rational singular chain complex of $B\\mathrm{Diff}_\\partial(D^{2k})$ when the dimension $2k$ is sufficiently large, generalizing Goussarov and Habiro\u0027s theories of surgery on 3-valent graphs in 3-manifolds. Our construction can be considered as a topological realization of the Kontsevich graph complex. We also give new constructions of elements in the rational homotopy groups of $B\\mathrm{Diff}_\\partial(D^{2k})$ which are determined by well-known cycles in the graph complex.",
"arxiv_id": "2601.08200",
"authors": [
"Boris Botvinnik",
"Tadayuki Watanabe"
],
"categories": [
"math.GT",
"math.AT"
],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "Brunnian links and Kontsevich graph complex I",
"url": "https://arxiv.org/abs/2601.08200",
"version": "v1"
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