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Bibliographic Details
Main Authors: Boyd, Rachael, Bregman, Corey
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2504.21806
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author Boyd, Rachael
Bregman, Corey
author_facet Boyd, Rachael
Bregman, Corey
contents We study the unparametrised smooth embedding space of a Hopf link in $\mathbb{R}^3$, and prove that it is homotopy equivalent to the closed 3-manifold $S^3/\mathbb{Q}_8$. As an intermediate step in the proof, we show that the inclusion of the subspace of round embeddings is a homotopy equivalence. We provide analogous results for the unparametrised smooth embedding space of a Hopf link in $S^3$, which we show is homotopy equivalent to $\mathbb{R} P^2\times \mathbb{R} P^2$.
format Preprint
id arxiv_https___arxiv_org_abs_2504_21806
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The embedding space of a Hopf link
Boyd, Rachael
Bregman, Corey
Geometric Topology
58D10, 55P15
We study the unparametrised smooth embedding space of a Hopf link in $\mathbb{R}^3$, and prove that it is homotopy equivalent to the closed 3-manifold $S^3/\mathbb{Q}_8$. As an intermediate step in the proof, we show that the inclusion of the subspace of round embeddings is a homotopy equivalence. We provide analogous results for the unparametrised smooth embedding space of a Hopf link in $S^3$, which we show is homotopy equivalent to $\mathbb{R} P^2\times \mathbb{R} P^2$.
title The embedding space of a Hopf link
topic Geometric Topology
58D10, 55P15
url https://arxiv.org/abs/2504.21806